Celestite, Cluster
This celestite cluster is one of one: the photo on the poster, shot in daylight, is the exact piece that ships, and its locality goes on the label at the drop.
Celestite cluster for sale
This celestite cluster for sale is a tight group of blocky crystals with a glassy shine, pale sky blue with a few cloudy white patches. Its price goes up with the first drop, and people on the list see it first.
What celestite is made of
Celestite is made of strontium sulfate, SrSO4, and it is the main ore of strontium, the element that turns fireworks and road flares red. The name comes from the Latin caelestis, "heavenly," for the pale sky blue of crystals like these. It is heavy for its size, nearly four times the weight of the same volume of water. More in the celestite guide.
Where this celestite comes from
The locality this celestite comes from goes on its label at the drop, since every geoslut label names the mineral and the locality. In general, celestite grows in sedimentary rock: in cavities and geodes in limestone and dolomite, and with gypsum in beds left behind by evaporating seawater.
Celestite care
Celestite care takes a lighter touch than quartz: at 3 to 3.5 on the Mohs scale it scratches easily, and it can split cleanly if knocked. Keep it dry, since it dissolves very slightly in water, and dust it with a soft brush instead. Strong direct sun can fade the blue, so give it a shady shelf.
How this celestite cluster ships
This celestite cluster ships from Denver, Colorado, and US shipping is free on orders over $75. Questions go to hi@geoslut.com.