Properties
⚖ Density6.176 g/cm³
Very heavy
🔷 Cubic✏️ streak white
| Chemical formula | Ca₁.₅Ta₂O₆(OH) |
|---|---|
| Elements | Ca, Ta, O, H |
| Crystal system | Cubic |
| Mohs hardness | — |
| Density | 6.176 g/cm³ |
| Streak | white |
| Color | yellow |
| IMA symbol | Hcmic |
| Nickel–Strunz class | 4.DH.15 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Volta Grande mine, Brazil
- Type locality
- Notable source / deposit
- Country of origin
Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.
Learn more
- Hydroxycalciomicrolite on Mindat.org
- Wikidata item Q19841460 (source of this page's data – you can correct it there)
IMA mineral species
Cubic
YellowGold