Cassiterite
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- Actinolite
- Adamite
- Agate
- Alabaster
- Albite
- Altaite
- Amazonite
- Amber (fossil)
- Amethyst
- Ametrine
- Ammonite (fossil)
- Andradite Garnet
- Angel Aura Quartz
- Angelite
- Apatite
- Apophyllite
- Aqua Aura Quartz
- Aquamarine
- Aurichalcite
- Australian Opals
- Austinite
- Aventurine
- Azurite
- Baker Geodes
- Bahia Amethyst
- Banded Amethyst
- Baltic Amber (fossil)
- Barite
- Beryl
- Black Kyanite
- Black Moonstone
- Black Onyx
- Black Opal
- Black Tourmaline (Schorl)
- Bloodstone
- Blue Fluorite
- Blue Lace Agate
- Blue Topaz
- Blue Tourmaline (Indicolite)
- Boulder Opal
- Botswana Agate
- Bronzite
- Bumblebee Jasper
- Cactus/Spirit/Faerie Quartz
- Calcite
- Carnelian
- Cassiterite
- Celestite
- Cerussite
- Chabazite
- Chalcedony
- Charoite
- Chevron Amethyst
- Chiastolite
- Chrome Diopside
- Chrysocolla
- Citrine
- Clear Quartz
- Cobaltoan Calcite
- Conichalcite
- Copper
- Coral
- Coral (fossil)
- Covellite
- Columbite
- Crazy Lace Agate
- Crocoite
- Cuprite
- Cuprian Austinite
- Dalmatian Jasper
- Danburite
- Demantoid Garnet
- Dendritic Agate
- Descloisite
- Diamond
- Dinosaur Bone (fossil)
- Dioptase
- Dogtooth Calcite
- Dolomite
- Dolostone
- Dragonsblood Jasper
- Emerald
- Epidote
- Ethiopian Emerald
- Ethiopian Opal
- Feldspar
- Flower Agate
- Fluorapatite
- Fluorite
- Fulgurite (Lechatelierite)
- Galena
- The Garnet Group
- Gaspeite
- Geodes
- Goethite
- Goldstone
- Green Apophyllite
- Green Aventurine
- Green Fluorite
- Green Moonstone
- Green Onyx
- Green Opal
- Green Tourmaline (Verdelite)
- Grossular Garnet
- Gypsum
- Gypsum - desert rose
- Hematite
- Hemimorphite
- Herkimer "diamond"
- Hessonite Garnet
- Heulandite
- Himalayan Salt
- Hydroxyl-Clinohumite
- Iceland Spar Calcite Rhombus
- Idocrase
- Imperial Topaz
- Inclusion Quartz
- Indigo Gabbro
- Iolite
- Jacare Amethyst
- Jade, Nephrite, and Jadeite
- Jasper
- Jet
- K2 Jasper
- Kambaba Jasper
- Kiwi Jasper
- Kyanite
- Labradorite
- Lapis Lazuli
- Larimar
- Leaf (fossil)
- Lemurian quartz
- Lepidolite
- Lithium Quartz
- Lybian Desert Glass
- Malachite
- Magnetite
- Mangano Calcite
- Mesolite
- Meteorite
- Mexican Fire Opal
- Mimetite
- Moldavite
- Montana Sapphire
- Mookaite Jasper
- Moonstone
- Mordenite
- Morganite
- Moss Agate
- Mother-of-Pearl
- Mottramite
- Moqui Balls
- Mystic
- Obsidian - sheen
- Ocean Jasper
- Onyx
- Opal
- Opalina
- Opalite
- Orgonite
- Orpheus Agate
- Orpiment
- Orthoclase
- Peach Moonstone
- Pearl
- Petrified Wood (fossil)
- Peridot
- Phlogopite
- Pietersite
- Pink Moonstone
- Pink Opal
- Pinolith
- Porphyry
- Poppy Jasper
- Prasiolite (green Amethyst)
- Prehnite
- Puddingstone
- Purple Fluorite
- Pyrite
- Quartz
- Rainbow Moonstone
- Red Agate
- Red Flower Jasper
- Red Jasper
- Red Selenite
- Red Tiger Eye
- Ricardite
- Rhodochrocite
- Rhodonite
- Rosasite
- Rose Quartz
- Ruby
- Ruby in Fuchite
- Ruby in Kyanite
- Ruby in Zoisite (Anyolite)
- Rutilated Quartz
- Sapphire
- Sand Dollar (fossil)
- Sandstone
- Sardonyx
- Schorl (Black Tourmaline)
- Sea Urchin (fossil)
- Sedona Jasper
- Sedona Sunrise
- Selenite
- Seraphinite
- Serpentine
- Septarian Calcite
- Shadow Amethyst
- Sheen Obsidian
- Shells (fossil)
- Shiva Lingham
- Shungite
- Silver Leaf Jasper
- Smithsonite
- Smoky Amethyst
- Smoky Quartz
- Snowflake Obsidian
- Sodalite
- Sonoran Sunrise
- Spencer Opal
- Spessartine Garnet
- Sphalerite
- Star Garnet
- Star Ruby
- Starfish (fossil)
- Staurolite Cross
- Stibnite
- Stilbite
- Stromatolite (fossil)
- Sunstone
- Super 7
- Tangerine Quartz
- Tanzanite
- Teeth (fossil)
- Tigers Eye
- Tiffany Stone
- Titanium Vapor Coated
- Trilobite (fossil)
- Tourmaline
- Tourmalinated Quartz
- Turquoise
- Umba Sapphire
- Unakite Jasper
- Uvarovite Garnet
- Variscite
- Vera Cruz Amethyst
- Vesuvianite
- Volborthite
- Water Agate
- Watermelon Tourmaline
- Willow Creek Jasper
- Wulfenite
- Zandrite
- Zebra Jasper
- Zeolites
- Zoisite
Some varieties of cassiterite are also known as “wood tin.”
Mineral formula: SnO2
Mineral group: member of the Rutile group
Crystal system: tetragonal
Crystal habit: Fibrous, botryoidal crusts or concretionary masses. Granular, coarse to fine.
Cleavage: {100} imperfect, {110} indistinct.
Fracture: irregular / uneven, sub-conchoidal
Color: black, yellow, brown, red or white
Luster: adamantine, greasy, sub-metallic
Diaphaneity: transparent, translucent or opaque
Moh’s scale hardness: 6 - 7
Streak: brownish white, white, or grayish
Specific gravity: 6.98 – 7.01
Named after: the term “Cassiterides” referring to 'islands off the western coast of Europe' in pre-Roman times (the exact location of these 'islands' has been hotly debated over the years, current thought is that the source was probably mainland Spain and that even 2000 years ago, traders had a habit of providing misleading locality information to protect their sources).
Geological occurrence: The primary ore of Tin, this mineral is found in hydrothermal veins and pegmatites associated with granite intrusions. Because of its durability, it is also frequently found concentrated in alluvial placer deposits, sometimes in large enough quantities to be commercially exploitable, as in Malaysia, for example.- Shop
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- New Mexico Minerals
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- Energy Tools
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- Gems & Cabs
- Home Decor
- Books & Games
- Sets & Kits
- Decorative Carvings & Shapes
- Gift Cards
- Blog
- Info Pages
- Birthstones
- Chakras
- Crystallography
- Crystal Habits
- Crystal Systems
- Geologic Time Scale
- Mohs Scale of Mineral Hardness
- Newsletter Archives
- Southwest Gem/ Mineral/ Rock Clubs
- Taos Rockers' Gem Safari
- Size Chart
- About
- Actinolite
- Adamite
- Agate
- Alabaster
- Albite
- Altaite
- Amazonite
- Amber (fossil)
- Amethyst
- Ametrine
- Ammonite (fossil)
- Andradite Garnet
- Angel Aura Quartz
- Angelite
- Apatite
- Apophyllite
- Aqua Aura Quartz
- Aquamarine
- Aurichalcite
- Australian Opals
- Austinite
- Aventurine
- Azurite
- Baker Geodes
- Bahia Amethyst
- Banded Amethyst
- Baltic Amber (fossil)
- Barite
- Beryl
- Black Kyanite
- Black Moonstone
- Black Onyx
- Black Opal
- Black Tourmaline (Schorl)
- Bloodstone
- Blue Fluorite
- Blue Lace Agate
- Blue Topaz
- Blue Tourmaline (Indicolite)
- Boulder Opal
- Botswana Agate
- Bronzite
- Bumblebee Jasper
- Cactus/Spirit/Faerie Quartz
- Calcite
- Carnelian
- Cassiterite
- Celestite
- Cerussite
- Chabazite
- Chalcedony
- Charoite
- Chevron Amethyst
- Chiastolite
- Chrome Diopside
- Chrysocolla
- Citrine
- Clear Quartz
- Cobaltoan Calcite
- Conichalcite
- Copper
- Coral
- Coral (fossil)
- Covellite
- Columbite
- Crazy Lace Agate
- Crocoite
- Cuprite
- Cuprian Austinite
- Dalmatian Jasper
- Danburite
- Demantoid Garnet
- Dendritic Agate
- Descloisite
- Diamond
- Dinosaur Bone (fossil)
- Dioptase
- Dogtooth Calcite
- Dolomite
- Dolostone
- Dragonsblood Jasper
- Emerald
- Epidote
- Ethiopian Emerald
- Ethiopian Opal
- Feldspar
- Flower Agate
- Fluorapatite
- Fluorite
- Fulgurite (Lechatelierite)
- Galena
- The Garnet Group
- Gaspeite
- Geodes
- Goethite
- Goldstone
- Green Apophyllite
- Green Aventurine
- Green Fluorite
- Green Moonstone
- Green Onyx
- Green Opal
- Green Tourmaline (Verdelite)
- Grossular Garnet
- Gypsum
- Gypsum - desert rose
- Hematite
- Hemimorphite
- Herkimer "diamond"
- Hessonite Garnet
- Heulandite
- Himalayan Salt
- Hydroxyl-Clinohumite
- Iceland Spar Calcite Rhombus
- Idocrase
- Imperial Topaz
- Inclusion Quartz
- Indigo Gabbro
- Iolite
- Jacare Amethyst
- Jade, Nephrite, and Jadeite
- Jasper
- Jet
- K2 Jasper
- Kambaba Jasper
- Kiwi Jasper
- Kyanite
- Labradorite
- Lapis Lazuli
- Larimar
- Leaf (fossil)
- Lemurian quartz
- Lepidolite
- Lithium Quartz
- Lybian Desert Glass
- Malachite
- Magnetite
- Mangano Calcite
- Mesolite
- Meteorite
- Mexican Fire Opal
- Mimetite
- Moldavite
- Montana Sapphire
- Mookaite Jasper
- Moonstone
- Mordenite
- Morganite
- Moss Agate
- Mother-of-Pearl
- Mottramite
- Moqui Balls
- Mystic
- Obsidian - sheen
- Ocean Jasper
- Onyx
- Opal
- Opalina
- Opalite
- Orgonite
- Orpheus Agate
- Orpiment
- Orthoclase
- Peach Moonstone
- Pearl
- Petrified Wood (fossil)
- Peridot
- Phlogopite
- Pietersite
- Pink Moonstone
- Pink Opal
- Pinolith
- Porphyry
- Poppy Jasper
- Prasiolite (green Amethyst)
- Prehnite
- Puddingstone
- Purple Fluorite
- Pyrite
- Quartz
- Rainbow Moonstone
- Red Agate
- Red Flower Jasper
- Red Jasper
- Red Selenite
- Red Tiger Eye
- Ricardite
- Rhodochrocite
- Rhodonite
- Rosasite
- Rose Quartz
- Ruby
- Ruby in Fuchite
- Ruby in Kyanite
- Ruby in Zoisite (Anyolite)
- Rutilated Quartz
- Sapphire
- Sand Dollar (fossil)
- Sandstone
- Sardonyx
- Schorl (Black Tourmaline)
- Sea Urchin (fossil)
- Sedona Jasper
- Sedona Sunrise
- Selenite
- Seraphinite
- Serpentine
- Septarian Calcite
- Shadow Amethyst
- Sheen Obsidian
- Shells (fossil)
- Shiva Lingham
- Shungite
- Silver Leaf Jasper
- Smithsonite
- Smoky Amethyst
- Smoky Quartz
- Snowflake Obsidian
- Sodalite
- Sonoran Sunrise
- Spencer Opal
- Spessartine Garnet
- Sphalerite
- Star Garnet
- Star Ruby
- Starfish (fossil)
- Staurolite Cross
- Stibnite
- Stilbite
- Stromatolite (fossil)
- Sunstone
- Super 7
- Tangerine Quartz
- Tanzanite
- Teeth (fossil)
- Tigers Eye
- Tiffany Stone
- Titanium Vapor Coated
- Trilobite (fossil)
- Tourmaline
- Tourmalinated Quartz
- Turquoise
- Umba Sapphire
- Unakite Jasper
- Uvarovite Garnet
- Variscite
- Vera Cruz Amethyst
- Vesuvianite
- Volborthite
- Water Agate
- Watermelon Tourmaline
- Willow Creek Jasper
- Wulfenite
- Zandrite
- Zebra Jasper
- Zeolites
- Zoisite
Refine
- Shop
- SALE
- NEW
- New Mexico Minerals
- Minerals
- Fossils
- Energy Tools
- Jewelry
- Gems & Cabs
- Home Decor
- Books & Games
- Sets & Kits
- Decorative Carvings & Shapes
- Gift Cards
- Blog
- Info Pages
- Birthstones
- Chakras
- Crystallography
- Crystal Habits
- Crystal Systems
- Geologic Time Scale
- Mohs Scale of Mineral Hardness
- Newsletter Archives
- Southwest Gem/ Mineral/ Rock Clubs
- Taos Rockers' Gem Safari
- Size Chart
- About
- Actinolite
- Adamite
- Agate
- Alabaster
- Albite
- Altaite
- Amazonite
- Amber (fossil)
- Amethyst
- Ametrine
- Ammonite (fossil)
- Andradite Garnet
- Angel Aura Quartz
- Angelite
- Apatite
- Apophyllite
- Aqua Aura Quartz
- Aquamarine
- Aurichalcite
- Australian Opals
- Austinite
- Aventurine
- Azurite
- Baker Geodes
- Bahia Amethyst
- Banded Amethyst
- Baltic Amber (fossil)
- Barite
- Beryl
- Black Kyanite
- Black Moonstone
- Black Onyx
- Black Opal
- Black Tourmaline (Schorl)
- Bloodstone
- Blue Fluorite
- Blue Lace Agate
- Blue Topaz
- Blue Tourmaline (Indicolite)
- Boulder Opal
- Botswana Agate
- Bronzite
- Bumblebee Jasper
- Cactus/Spirit/Faerie Quartz
- Calcite
- Carnelian
- Cassiterite
- Celestite
- Cerussite
- Chabazite
- Chalcedony
- Charoite
- Chevron Amethyst
- Chiastolite
- Chrome Diopside
- Chrysocolla
- Citrine
- Clear Quartz
- Cobaltoan Calcite
- Conichalcite
- Copper
- Coral
- Coral (fossil)
- Covellite
- Columbite
- Crazy Lace Agate
- Crocoite
- Cuprite
- Cuprian Austinite
- Dalmatian Jasper
- Danburite
- Demantoid Garnet
- Dendritic Agate
- Descloisite
- Diamond
- Dinosaur Bone (fossil)
- Dioptase
- Dogtooth Calcite
- Dolomite
- Dolostone
- Dragonsblood Jasper
- Emerald
- Epidote
- Ethiopian Emerald
- Ethiopian Opal
- Feldspar
- Flower Agate
- Fluorapatite
- Fluorite
- Fulgurite (Lechatelierite)
- Galena
- The Garnet Group
- Gaspeite
- Geodes
- Goethite
- Goldstone
- Green Apophyllite
- Green Aventurine
- Green Fluorite
- Green Moonstone
- Green Onyx
- Green Opal
- Green Tourmaline (Verdelite)
- Grossular Garnet
- Gypsum
- Gypsum - desert rose
- Hematite
- Hemimorphite
- Herkimer "diamond"
- Hessonite Garnet
- Heulandite
- Himalayan Salt
- Hydroxyl-Clinohumite
- Iceland Spar Calcite Rhombus
- Idocrase
- Imperial Topaz
- Inclusion Quartz
- Indigo Gabbro
- Iolite
- Jacare Amethyst
- Jade, Nephrite, and Jadeite
- Jasper
- Jet
- K2 Jasper
- Kambaba Jasper
- Kiwi Jasper
- Kyanite
- Labradorite
- Lapis Lazuli
- Larimar
- Leaf (fossil)
- Lemurian quartz
- Lepidolite
- Lithium Quartz
- Lybian Desert Glass
- Malachite
- Magnetite
- Mangano Calcite
- Mesolite
- Meteorite
- Mexican Fire Opal
- Mimetite
- Moldavite
- Montana Sapphire
- Mookaite Jasper
- Moonstone
- Mordenite
- Morganite
- Moss Agate
- Mother-of-Pearl
- Mottramite
- Moqui Balls
- Mystic
- Obsidian - sheen
- Ocean Jasper
- Onyx
- Opal
- Opalina
- Opalite
- Orgonite
- Orpheus Agate
- Orpiment
- Orthoclase
- Peach Moonstone
- Pearl
- Petrified Wood (fossil)
- Peridot
- Phlogopite
- Pietersite
- Pink Moonstone
- Pink Opal
- Pinolith
- Porphyry
- Poppy Jasper
- Prasiolite (green Amethyst)
- Prehnite
- Puddingstone
- Purple Fluorite
- Pyrite
- Quartz
- Rainbow Moonstone
- Red Agate
- Red Flower Jasper
- Red Jasper
- Red Selenite
- Red Tiger Eye
- Ricardite
- Rhodochrocite
- Rhodonite
- Rosasite
- Rose Quartz
- Ruby
- Ruby in Fuchite
- Ruby in Kyanite
- Ruby in Zoisite (Anyolite)
- Rutilated Quartz
- Sapphire
- Sand Dollar (fossil)
- Sandstone
- Sardonyx
- Schorl (Black Tourmaline)
- Sea Urchin (fossil)
- Sedona Jasper
- Sedona Sunrise
- Selenite
- Seraphinite
- Serpentine
- Septarian Calcite
- Shadow Amethyst
- Sheen Obsidian
- Shells (fossil)
- Shiva Lingham
- Shungite
- Silver Leaf Jasper
- Smithsonite
- Smoky Amethyst
- Smoky Quartz
- Snowflake Obsidian
- Sodalite
- Sonoran Sunrise
- Spencer Opal
- Spessartine Garnet
- Sphalerite
- Star Garnet
- Star Ruby
- Starfish (fossil)
- Staurolite Cross
- Stibnite
- Stilbite
- Stromatolite (fossil)
- Sunstone
- Super 7
- Tangerine Quartz
- Tanzanite
- Teeth (fossil)
- Tigers Eye
- Tiffany Stone
- Titanium Vapor Coated
- Trilobite (fossil)
- Tourmaline
- Tourmalinated Quartz
- Turquoise
- Umba Sapphire
- Unakite Jasper
- Uvarovite Garnet
- Variscite
- Vera Cruz Amethyst
- Vesuvianite
- Volborthite
- Water Agate
- Watermelon Tourmaline
- Willow Creek Jasper
- Wulfenite
- Zandrite
- Zebra Jasper
- Zeolites
- Zoisite