Minerals
Minerals are naturally occurring inorganic substances with a specific chemical composition and crystalline structure. They are the building blocks of rocks and are classified by their chemical composition and crystal system.
Showing 301-360 of 5,084 specimens
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Arzrunite
Asbecasite
Hardness: 6.5 - 7
Asbolane
Aschamalmite
Hardness: 3.5
Ashburtonite
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Ashcroftine-(y)
Hardness: 5
Ashoverite
Asimowite
Asisite
Hardness: 3.5
Aspedamite
Hardness: 3 - 4
Aspidolite
Asselbornite
Hardness: 3
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Astrocyanite-(ce)
Hardness: 2 - 3
Atelestite
Hardness: 4.5 - 5
Atelisite-(y)
Atencioite
Hardness: 4.5
Athabascaite
Hardness: 2.5
Atheneite
Hardness: 5
Atlasovite
Hardness: 2 - 2.5
Atokite
Hardness: 4.5
Attakolite
Attikaite
Hardness: 2.5 - 3
Aubertite
Hardness: 2 - 3
Auerbakhite
Augelite
Hardness: 4.5 - 5
Auriacusite
Hardness: 3
Aurichalcite
Hardness: 1 - 2
Auricupride
Hardness: 3.5
Aurihydrargyrumite
Hardness: 2.5
Aurivilliusite
Aurorite
Hardness: 2 - 3
Aurostibite
Hardness: 3
Avdeevite
Avdoninite
Hardness: 3
Averievite
Hardness: 4
Avicennite
Hardness: 1.5 - 2.5
Avogadrite
Awaruite
Hardness: 5
Axelite
Axinite (mineral group)
Hardness: 6 - 7.5
Axinite-(fe)
Hardness: 6.5 - 7
Axinite-(mg)
Hardness: 6.5 - 7
Axinite-(mn)
Hardness: 6.5 - 7
Azoproite
Hardness: 5.5
Azurite
Hardness: 3.5 - 4
Babánekite
Hardness: 1.5 - 2
Babefphite
Hardness: 3.5
Babingtonite
Hardness: 5.5 - 6
Babkinite
Hardness: 2
Backite
Hardness: 2 - 3
Badakhshanite-(y)
Hardness: 6.5 - 7
Badalovite
Baddeleyite
Hardness: 6.5
Badengzhuite
Bafertisite
Hardness: 5
Baghdadite
Hardness: 6
Bahariyaite
Bahianite
Hardness: 9
Baileychlore
Hardness: 2.5 - 3
Bainbridgeite-(yce)
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