Pekovite

The strontium analogue of Danburite and Maleevite. The structure has paracelsian topology; as such, the species may alternatively be grouped within "paracelsian group", alongside with danburite, maleevite, maleevite, paracelsian, hurlbutite, and strontiohurlbutite.

History

Activities related to discovery and approval of the group members

Structural context

Pekovite
Crystal System orthorhombicCrystal Class orthorhombic dipyramidalSpace Group Pnma
a8.155
b7.919
c8.921
alpha90
beta90
gamma90
volume576.113

Based on 1 measurements

Chemical context

Stoichiometric formulas

Pekovite
mindat.org
  • March 13, 2023SrB2Si2O8
IMA
  • March 13, 2023SrB2Si2O8
mineralogy.rocks
  • Aug. 30, 2022SrB2Si2O8

Elements recorded on EPMA

1
B
1
O
1
Si
1
Sr

Physical properties

ColorColor entities, recognized using a custom trained NER model
    • colourless
    Color noteOriginal color note from the source
    White, colourless
    StreakStreak entities, recognized using a custom trained NER model
      Streak noteOriginal streak note from the source
      White
      Lustre
      Vitreous
      Fracture
      Irregular/Uneven
      Transparency
      Transparent
      Tenacity
      brittle
      Hardness
      6.5—7
      Calculated density
      3.36