Small malachite cabochons in two 19mm formats: oval (19×12×4 mm) and narrow rectangular (19×8×3 mm). Emerald green with concentric black bands, mirror finish.
Piece Details
| Mineral |
Malachite [Cu₂(CO₃)(OH)₂], copper carbonate |
| Dimensions |
M1: 19×12×4 mm · M8: 19×8×3 mm |
| Shape and Back |
M1: oval · M8: narrow rectangular — flat back on both |
| Finish |
Mirror polished |
| Hardness |
3.5–4 Mohs — we recommend a closed bezel setting; malachite is fragile to impacts and sensitive to acids, even sweat |
| Origin |
Material acquired from wholesale lapidary market |
| Treatment |
Untreated |
| Piece Type |
Available in 2 formats |
This Specific Piece
Despite their small size, the concentric bands of malachite are well-defined in these cabochons: the light green of the crystals contrasts with the dark, almost black green of the dense areas, creating a pattern reminiscent of miniature topographical contours. The clarity of the pattern is directly related to the quality of the cut and polish.
How Malachite Bands Form
Malachite crystallizes through supergene alteration of copper minerals under oxidizing conditions in copper deposits. The concentric bands reflect rhythmic variations in copper concentration and precipitation rate: lighter zones correspond to slower crystallization with lower pigment density; darker zones, to rapid and compact precipitation.
What Mounting It Works For
-
Closed bezel setting (925 silver or other metal) — malachite, with a hardness of 3.5–4 and fragility to impacts, needs full perimeter protection. A closed bezel is the standard solution for pendants and earrings with continuous wear.
-
Small pendants in 925 silver — the intense green of malachite creates a clean contrast against silver. The 19mm size works well for fine chain pendants where the stone does not overpower the design.
-
Wire wrap with fine wire — for the oval M1, wire wrap is an option if the wire wraps generously and does not exert localized pressure on the face. Use 0.4 mm silver wire.
Malachite in Lapidary Tradition
Malachite is one of the minerals with the longest documented lapidary history: its mines in Sinai were already exploited by Ancient Egypt 3,500 years ago for green pigment (used as eyeshadow in kohl) and for amulets. In 19th-century Imperial Russia, malachite was extracted from the Urals in blocks large enough to line columns and fireplaces in the Hermitage.
In crystal tradition, malachite is associated with transformation and openness to change, reflected in its bands that are never exactly repeated.
The symbolic properties attributed to minerals belong to cultural and historical traditions. They are shared for educational purposes, not as medical advice or a substitute for professional care.
How to Recognize Genuine Malachite
Genuine malachite presents irregular concentric bands visible under magnification; reconstituted malachite (powder compressed with resin) has overly homogeneous and artificial bands. The acid test is definitive: a drop of dilute hydrochloric acid produces visible effervescence in genuine malachite (carbonate reaction).
Frequently Asked Questions
What is the difference between M1 and M8?
M1 is an oval cabochon measuring 19×12×4 mm; M8 is a narrow rectangular cabochon measuring 19×8×3 mm. Both have the same length (19 mm) but different width and profile.
Does malachite require special care?
Yes. Malachite is sensitive to acid (including prolonged sweat), solvents, and direct impacts.
Has it undergone any treatment?
No detectable treatment. No apparent stabilization or dyeing. Statement based on lapidary observation; the piece does not include gemological certification.
More varieties of malachite and green minerals in our cabochon collection.
