description Celestite Overview
Celestite is a mineral composed of strontium sulfate and is named for its pale sky-blue color, although it can also occur in white or other shades. It forms crystals and geodes that are collected as mineral specimens and, when transparent and attractive, may be cut or displayed as a gemstone. Important deposits occur in Madagascar and Ohio, and celestite is the principal commercial source of strontium.
help Celestite FAQ
What is celestite?
Celestite is a mineral composed of strontium sulfate. Its name refers to its usual pale sky-blue color, although white and other shades also occur.
Why is celestite often blue?
The mineral is commonly recognized for pale blue crystals, but color can vary with impurities and crystal conditions. White celestite is also found and can still be identified by its crystal form and composition.
Where is celestite found?
Celestite occurs in mineral deposits where strontium-bearing fluids can form crystals, including cavities and sedimentary settings. It is frequently collected as crystals or geode material.
Can celestite be used as a gemstone?
Transparent, attractive celestite may be cut or displayed, but it is more commonly kept as a mineral specimen. Its pale color and relatively delicate nature make careful handling important.
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