Clinozoisite

Clinozoisite Subgroup of the Epidote Group Clinozoisite-Epidote Series. The Al3 analogue of Epidote. May be visually similar to zoisite.

History

Activities related to discovery and approval of the group members

Structural context

Clinozoisite
Crystal System monoclinicCrystal Class prismaticSpace Group P21/m
a8.793—8.8923 (8.8739)
b5.526—5.6065 (5.5862)
c9.996—10.2585 (10.1611)
alpha90
beta114.97—115.5 (115.2801)
gamma90
volume439.119—461.727 (455.466)

Based on 23 measurements

Chemical context

Stoichiometric formulas

Clinozoisite
mindat.org
  • April 9, 2023(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
  • March 13, 2023{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
IMA
  • March 13, 2023Ca2Al3[Si2O7][SiO4]O(OH)
mineralogy.rocks
  • Aug. 30, 2022Ca2Al3(Si2O7)(SiO4)O(OH)

Elements recorded on EPMA

23
Al
23
Ca
23
O
23
Si
13
H
9
Sr
7
Cr
6
Fe

Physical properties

ColorColor entities, recognized using a custom trained NER model
  • colourless
  • light green
  • yellow-green
    • pale brownish
    • green-brown
      Color noteOriginal color note from the source
      Colourless, green, grey, light green, yellow-green, pale brownish, green-brown, pink
      StreakStreak entities, recognized using a custom trained NER model
      • greyish white
      Streak noteOriginal streak note from the source
      Greyish white
      Lustre
      Vitreous
      Fracture
      Irregular/Uneven
      Transparency
      Transparent
      Translucent
      Hardness
      7
      Measured density
      3.3—3.4
      Calculated density
      3.23