Alabaster is used as a decorative stone. It is found as fine-grained masses in pastel shades. However, it is commonly stained in stronger colors. The rough alabaster stone has a parallel fibrous structure.
Occurrence
Alabaster is usually found in England and Italy (alabaster).
Gypsum Properties
- Specific Gravity: 2.32
- Refractive Index: 1.52-1.53
- Birefringence (DR): 0.010
- Luster: Silky to vitreous
- Crystal Structure: Monoclinic
- Composition: Hydrated calcium sulfate
- Hardness: 2
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