Weight – 12.30 oz’s – 348.6 gm’s
Dimensions – 3.107″ x across (7.892 cm’s)
Country of Origin – Madagascar
USD $42.00
SKU: M2142
This is a beautiful blue Celestite cluster with very shiny luster! This specimen is in good condition. Check out the video for the best look at this awesome piece!
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Weight – 12.30 oz’s – 348.6 gm’s
Dimensions – 3.107″ x across (7.892 cm’s)
Country of Origin – Madagascar
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Celestite, also known as Celestine, is a naturally occurring strontium sulfate mineral best known for its soft blue coloration and delicate crystal formations. Its name derives from the Latin caelestis, meaning “heavenly,” reflecting both its pale sky-blue hues and its long-standing symbolic association with calm, elevated states of awareness.
Celestite typically forms in sedimentary environments, often within limestone or evaporite deposits where mineral-rich fluids slowly crystallize in cavities and geodes. Over extended periods, this slow growth produces clusters of prismatic or tabular crystals with a subtle glassy to pearly luster.
Blue Celestite is the most recognized and sought-after form, though the mineral may also appear colorless, white, gray, or faintly yellow. The blue coloration is natural and not the result of heat treatment, though lighter material may fade if exposed to prolonged sunlight.
Celestite is frequently misidentified in the crystal trade. Blue Calcite, Blue Aragonite, and dyed Quartz are sometimes sold under the Celestite name. Genuine Celestite can be distinguished by its crystal habit, brittleness, and its characteristic cleavage, which differs from calcite-based minerals.
Notable sources of fine Celestite include Madagascar, Mexico, Libya, Poland, and the United States.
Celestite is composed of strontium sulfate (SrSO₂) and crystallizes in the orthorhombic crystal system. It forms primarily in sedimentary environments, particularly in evaporite settings where sulfate-rich waters interact with strontium-bearing minerals.
Crystals commonly grow in cavities and geodes, producing sharp, fragile crystal clusters. Celestite has perfect cleavage in one direction, making it prone to splitting and breakage if handled improperly. It is closely related to Barite (barium sulfate) and may occur alongside minerals such as Calcite, Gypsum, Dolomite, Sulfur, and Halite.
Due to its softness and cleavage, Celestite is considered a collector and display mineral rather than a material suited for jewelry or frequent handling.
| Property | Value |
|---|---|
| Mineral Species | Celestite (Celestine) |
| Chemical Formula | SrSO₄ |
| Crystal System | Orthorhombic |
| Hardness (Mohs Scale) | 3 – 3.5 |
| Luster | Vitreous to pearly |
| Transparency | Transparent to translucent |
| Cleavage | Perfect in one direction |
| Typical Formation | Sedimentary (evaporite and limestone cavities) |
⚠️ Handling:
Celestite is a soft, brittle mineral with perfect cleavage. Always lift specimens from the base and avoid contact with crystal points or edges.
🧼 Cleaning:
Celestite is not water-safe for soaking. Avoid prolonged water exposure, salt, or chemical cleaners. Use a soft dry brush or gentle air to remove dust.
☀️ Light:
Prolonged exposure to strong sunlight may cause fading in blue Celestite. Display away from direct sunlight and heat sources.
📦 Storage & Display:
Store wrapped and cushioned to prevent vibration and impact. Celestite is best displayed on a stable surface where it will not be disturbed.