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 4261-4320 of 5,084 specimens
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Steedeite
Steenstrupine-(ce)
Hardness: 4
Stefanweissite
Steigerite
Hardness: 2.5 - 3
Steinhardtite
Steinmetzite
Steklite
Hardness: 2
Stellerite
Hardness: 4.5
Stenhuggarite
Stenonite
Hardness: 3.5
Stepanovite
Hardness: 2
Stephanite
Hardness: 2 - 2.5
Štěpite
Hardness: 2
Stercorite
Hardness: 2
Stergiouite
Hardness: 3
Sterlinghillite
Hardness: 3
Sternbergite
Hardness: 1 - 1.5
Steropesite
Sterryite
Hardness: 3.5
Stetindite-(ce)
Stevensite
Hardness: 2.5
Steverustite
Stewartite
Stibarsen
Hardness: 3 - 4
Stibiconite
Stibioclaudetite
Stibiocolumbite
Hardness: 5.5
Stibiocolusite
Hardness: 4 - 4.5
Stibiopalladinite
Hardness: 4 - 5
Stibiotantalite
Hardness: 5.5
Stibivanite
Hardness: 4 - 4.5
Stilbite-ca
Hardness: 3.5 - 4
Stilbite-na
Hardness: 3.5 - 4
Stilleite
Hardness: 5
Stillwaterite
Hardness: 4.5
Stillwellite
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Stillwellite-(ce)
Hardness: 6.5
Stilpnomelane
Hardness: 3 - 4
Stishovite
Hardness: 7.5 - 8
Stistaite
Hardness: 3
Stöfflerite
Stoiberite
Stokesite
Hardness: 6
Stolperite
Stoppaniite
Hardness: 7.5
Stornesite-(y)
Stottite
Hardness: 4.5
Stracherite
Hardness: 5
Straczekite
Hardness: 1 - 2
Strakhovite
Hardness: 5 - 6
Stranskiite
Hardness: 4
Strashimirite
Hardness: 2.5 - 3
Straßmannite
Hardness: 1.5
Strätlingite
Strelkinite
Hardness: 2 - 2.5
Strengite
Hardness: 3.5 - 4
Stringhamite
Stromeyerite
Hardness: 2.5 - 3
Stronadelphite
Hardness: 5
Stronalsite
Hardness: 6.5
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