strontia

Of or pertaining to an alkali or to alkalies; having the properties of an alkali. ÷ earths, certain substances, as lime, baryta, strontia, and magnesia, possessing some of the qualities of alkalies.

It’s a form of rock crystal, strontia, I believe some people call it, and I don’t doubt but what it’s related to the limestone in the quarries.

Strontium obtained from carbonate of strontia by Sir Humphry Davy.

Stron′tia, the oxide of strontium—also Stron′tian; Stron′tianite, carbonate of strontia.

In the same year a paper by Thomson appeared in the Philosophical Transactions, wherein it was experimentally proved that oxalic acid combines with strontia to form two distinct compounds, one of which contains twice as much oxalic acid as the other, the amount of strontia being the same in both.