S minerals

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Sanidine from Chastreix

from Chastreix, France.

Variety of high temperature K-feldspar.

Chemistry : KAlSi₃O₈
System : Monoclinic

Gemmy Sanidine

from Madagascar.

Variety of high temperature K-feldspar.

Chemistry : KAlSi₃O₈
System : Monoclinic

Sapphire

from various origins.

Corundum variety of different colors, not necessarily blue.

Chemistry : Al₂O₃
System : Trigonal

Scheelite

from various origins.

Rare mineral from pegmatite, metamorphic rocks or related hydrothermalism.

Chemistry : CaWO₄
System: Tetragonal

Siderite

from various origins.

Carbonate from hydrothermal origin.

Chemistry : FeCO₃
System : Trigonal

Smithsonite

from various origins.

A calcite group mineral.

Chemistry : ZnCO₃
System : Trigonal

Sulphur

from various origins.

Fumarolic and evaporitic mineral.

Chemistry : S
System : Orthorhombic

Sphalerite

from various origins.

Main zinc ore from hydrothermal environments.

Chemistry : ZnS
System : Cubic

Spinel

from various origins.

Mineral from metamorphic limestones and pegmatites.

Chemistry : MgAl₂O₄
System : Cubic

Spodumene

from various origins.

Rare mineral from Li-rich pegmatites.

Chemistry : LiAlSi₂O₆
System : Monoclinic

Staurolite

from various origins.

Metamorphic mineral of amphibolite facies.

Chemistry : Fe₂Al₉(Si, Al)₄O₂₂(OH)₂
System : Monoclinic

Stibnite

from various origins.

Mineral from hydrothermal origin.

Chemistry : Sb₂S₃
System : Orthorhombic

Stilbite

from various origins.

A zeolite group mineral.

Chemistry : NaCa₄Al₈Si₂₈O₇₂ · 30(H₂O)
System : Orthorhombic

Stolzite

A rare mineral from lead and tungsten deposits.

Chemistry : PbWO₄
System : Tetragonal

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