Natural Snow Gypsum Crystal – Satin Spar Variety – White Fibrous Mineral Specimen with Certificate – Genuine Gypsum

Description

Natural Snow Gypsum (Satin Spar Variety) – Authentic Mineral Specimen

This listing features a beautiful Snow Gypsum crystal, a fibrous, satin-like variety of the mineral gypsum (CaSO₄·2H₂O). Known for its silky sheen and soft white color, Snow Gypsum is a favorite among mineral collectors, crystal healers, and geology enthusiasts.

• All of our Crystals are 100% Genuine Specimens & come with a Certificate of Authenticity.

• Scale cube = 1cm. For exact sizing, please refer to the photo provided.

• This is a carefully selected specimen, and the image shows the exact crystal you will receive.

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Geological and Mineralogical Information:

• Name: Snow Gypsum (Satin Spar)

• Mineral Type: Gypsum

• Chemical Formula: CaSO₄·2H₂O (Calcium Sulfate Dihydrate)

• Crystal System: Monoclinic

• Color: White to snow-white, silky sheen

• Transparency: Translucent to opaque

• Hardness: 2 (on Mohs scale)

• Lustre: Silky or pearly

• Cleavage: Perfect in one direction, which contributes to its fibrous structure

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Morphology Features:

• Exhibits parallel fibrous or needle-like crystals

• Often appears as radiating fibrous masses with a lustrous, silky surface

• Light reflective properties give a shimmering, satin-like finish

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Depositional Environment:

• Typically forms in evaporite deposits, where bodies of water have evaporated and left behind high concentrations of dissolved minerals

• Commonly associated with desert playas, saline lakes, and marine evaporation basins

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Geological Stage:

• Found in sedimentary strata ranging from Permian to Recent

• Common in gypsum-rich formations worldwide, especially where warm, arid environments existed historically

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Classification:

• Family: Sulfate minerals

• Order: Hydrated Sulfates

• Group: Gypsum group

• Super Family: Evaporites

• Mineral Identification:

  • Widely known since antiquity

  • Formally classified in mineralogical literature in the 18th and 19th centuries

  • Recognized by the International Mineralogical Association (IMA)

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Notable Information:

• Snow Gypsum is sometimes confused with clear selenite and fibrous satin spar, both varieties of gypsum with different crystal habits

• Unlike clear selenite blades, Snow Gypsum has a dense, fibrous internal structure and radiates light diffusely

• Its softness makes it ideal for shaping and carving, though it should be protected from water due to solubility

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Care Instructions:

• Keep dry – avoid water exposure

• Store away from harder minerals to avoid scratching

• Clean with a soft dry cloth only

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Summary:

This authentic Snow Gypsum crystal is a naturally formed, fibrous variety of gypsum with a soft white color and satin sheen. It’s a visually striking piece for collectors, educators, or spiritual enthusiasts. Add this mineral to your collection for a beautiful and geologically significant display.