Clinochlore

Clinochlore specimens for sale

17 for sale · $120–$3,000 USD

111 in the gallery

Clinochlore is a member of the chlorite group, commonly forming green, flaky to silky masses with a soft, pearly lustre. It often occurs in foliated or lamellar aggregates that can mineralize as thin plates within metamorphic rocks, reflecting a characteristic sheet silicate structure. Color ranges from pale to deep green, and the mineral may show slightly darker cores in some specimens; the habit is typically platy, with a flexible, easy-to-split surface that can feel greasy to the touch. In polished sections, clinochlore displays the distinctive green pleochroism of chlorite minerals and contributes to the overall green sheen seen in many metamorphic assemblages.

Formula
Mg5Al(AlSi3O10)(OH)8
Rarity
Common
Stability
Stable
Collector interest
Moderate Interest
Classification notes
Phyllosilicate; chlorite group

Key characteristics

Crystal system
monoclinic
Mohs hardness
2–2.5
Specific gravity
2.55–2.75
Luster
vitreous, pearly, dull
Transparency
transparent, translucent
Color
green, white, gray, yellow, brown, pink
Streak
white
Cleavage
perfect
Fracture
uneven
Crystal habit
tabular, bladed, granular, massive
  • Gem mineral

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Where Clinochlore is found

Top localities

  1. Tilly Foster Iron Mine15 specimens
  2. Kouri 1 diggings6 specimens
  3. Wood Mine5 specimens
  4. Larkin's Quarry4 specimens
  5. Ala Valley3 specimens
  6. Korshunovskoye iron deposit3 specimens
  7. Marki Khel3 specimens
  8. Kop Krom Mine3 specimens
  9. Jeffrey Mine2 specimens
  10. Krumlbach valley2 specimens

About Clinochlore

Notable specimens of clinochlore come from a variety of localities around the world, including historically important deposits in Italy and Türkiye, where it occurs within greenschist and lower-grade metamorphic rocks. In collecting terms, clinochlore is appreciated for its vivid greens, its utility as a rock-forming mineral in schists and serpentinites, and for its association with other chlorite-group minerals. Collectors value well-formed platelets and aggregates that reveal the mineral’s luster and delicate cleavage; pale green to deeper hues add visual interest when displayed with complementary minerals and matrix rock.