IMA mineral species

Tertschite

Ca₄B₁₀O₁₉·20H₂O

Questionable borate mineral.

Tertschite specimen
Tertschite.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaCa₄B₁₀O₁₉·20H₂O
ElementsCa, B, O, H
Crystal system—
Mohs hardness—
Density—
Streak—
Color—
IMA symbolTrt
Nickel–Strunz class6.EB.20

“—” means no reliable value in Wikidata yet. Check Mindat for full data.