The crystals are made of selenite gypsum, a sulfate mineral that forms from salts dissolved in groundwater. It is so soft you ...

With 22 major minerals and 36 minor ones, Rajasthan is the country's only producer of lead, zinc, wollastonite, selenite, ...

This hypothesis strengthens the scientific interest in future missions. A - Crystalline facies of gypsum and sample handling. B - Twin selenite crystals and small crystals showing the dark reentrant ...