Selenite

Selenite is a mineral, specifically a transparent variety of gypsum, known for its translucent, white, and often moonlit appearance. It's formed when sulfate and calcium-rich saltwater evaporates in sedimentary environments like dried-up lakes. Selenite is valued for its beauty and has been used in various ways throughout history, from ancient window panes to spiritual practices.
 
More details about selenite:
Formation:
Selenite is a crystallized form of gypsum, which forms when sulfate and calcium-rich saltwater evaporates. 
Appearance:
It typically appears as a translucent, multifaceted stone with a soft, glowing quality. 
Historical Uses:
Ancient Romans and Greeks used thin sheets of selenite as window panes, and it was also valued for its spiritual properties, including purification and protection. 
Modern Uses:
Selenite is often used in energy healing practices for cleansing and clearing negative energy from spaces and objects. 
Selenite vs. Satin Spar:
Satin spar is a fibrous variety of gypsum, often confused with selenite. 
Healing Properties (Unproven):
While some believe selenite has healing properties, there's no scientific evidence to support these claims. 
Name Origin:
The name "selenite" comes from the Greek goddess of the moon, Selene, reflecting its soft, moonlit appearance. 
Trace Element Relationship:
Selenite is related to the trace element selenium, which has established health benefits. 
Mohs Hardness Scale:
Selenite has a hardness of 2 on the Mohs scale.