Selenite is a light and transparent mineral that, along with three others minerals belongs to a mineral named Gypsum. The Selenite crystals have obtained their name of the Ancient Greek word Selene which means moon. This name comes from the uncanny resemblance between this fascinating mineral and the orb of night. All arrays of gypsum including Alabaster and Selenite, are composed of a calcium sulfate dehydrate (meaning that it contains two molecules of water).
All forms of Gypsum are very soft crystals and are rated only 2 on the Moh’s scale of hardness. The important feature of Selenite is that this crystal along with every other Gypsum mineral has its own thermal insulating properties, making them warm to touch.
Probably the most fascinating crystal deposit on the planet is a mine in Naica Mexico. This mine is known as the Cave of Swords, and it contains some of the world’s largest Selenite crystals. The sword-like arrangements are found there along with numerous others Gypsum varieties.
Although very beautiful, the Gypsum family is not very rare. This mineral occurs in muddy lake bottoms, dried seas, and many more locations thus
being an evaporative mineral. The selenite crystal clusters in very dry and arid conditions, are formed with sand grains within the mineral itself. This
most often happens with the well known alteration of gypsum, the Desert rose, although present with others.
These crystals can form in conjunction with other minerals for instance sulfur, sulfides, copper ores, dolomite, limestone, and many more minerals.
An incredible alteration of selenite is made in form of flowers. These magnificent states of this crystal and can be found in Thornhill cave, and are exhibited in Kentucky.
These crystals and the entire Gypsum family is truly a magnificent demonstration of the power of Mother Nature. We have been blessed by her, with the Gypsum family, along many other crystals in this stunning world.
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