Selenite, satin spar, desert rose, and gypsum flower are crystal habit varieties of the mineral gypsum. All varieties of gypsum, including selenite and Satin Spar are composed of calcium sulfate dehydrate, with the chemical formula CaSO4·2H2O.
The main distinguishing characteristics of crystalline gypsum are their softness (hardness 2 on Mohs scale, soft enough to scratch with a fingernail) and their three unequal cleavages. Other distinguishing characteristics include their crystal habits, pearly luster, easy fusibility with loss of water, and solubility in hot dilute hydrochloric acid.
Technical Characteristics
| Chemical Formula | CaSO4·2H2O |
| Other names | satin spar desert rose gypsum flower |
| Molecular Weight | 172 gr/mol |
| Crystal system | Monoclinic (2/m) Space group: A2/a |
| Crystal habit | Earthy – dull, clay-like texture with no visible crystalline affinities |
| Appearance | Brown green |
Applications
– Sculpture & Art
– Agriculture
– Food & Beverage
– Pharmaceuticals & Cosmetics
Environmental impact of
Selenite is generally considered a safe mineral for the environment, but its extraction and processing can have negative impacts. Mining operations to extract selenite may cause the destruction of natural habitats and the contamination of soil and water. Also, the transportation and widespread use of this material may be associated with the production of dust, which can affect air quality. However, selenite is naturally non-toxic and has a limited environmental impact if disposed of properly.
Safety Measures and Regulations for Handling
When working with selenite, certain safety measures must be observed to avoid potential hazards. To reduce dust generation, a protective mask should be worn and the work environment should be well ventilated. It is also recommended to wear gloves when cutting or processing selenite to prevent skin irritation. Selenite should be stored in a dry environment and away from moisture, as water absorption can weaken its structure. Training employees and awareness of safe storage and transportation methods for this material will help reduce the risks.
Packing
This mineral is supplied in Bulk or Big Bags