IMA mineral species

Alfredcasparite

Sr₂TiO(Si₂O₇)

Properties

Chemical formulaSr₂TiO(Si₂O₇)
ElementsSr, Ti, O, Si
Crystal systemTetragonal
Mohs hardness—
Density—
Streak—
Color—
IMA symbolAfc
Nickel–Strunz class9.BE.

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

🌍 Where it's found

Type locality (where it was first described): Caspar quarry, Germany

  • 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.