Cu3(SO4)(OH)4
Deep green steadiness holding the heart open
Antlerite is named after its type locality, the Antler mine in Arizona, USA, where it was first recognised. The name simply ties the mineral to the place that yielded it.
Antlerite is a copper sulfate hydroxide, Cu3(SO4)(OH)4, crystallising in the orthorhombic system as bright emerald-green to dark-green tabular, needle-like or fibrous crystals, with a pale-green streak and a hardness of about 3 to 3.5.
Unlike the more familiar copper carbonates malachite and azurite, it forms under more acidic, sulfate-rich, arid conditions, and at places like Chuquicamata in Chile it is even a major copper ore. As a copper-bearing mineral — and a slightly soluble one — it must be handled cleanly and never ingested or made into elixirs.
Antlerite's type locality is the Antler mine in Arizona, but it was long thought to be a rarity until it was recognised as a major ore mineral in the great arid copper deposits.
Most famously it is abundant at Chuquicamata in Chile, one of the world's largest copper mines; fine specimens also come from Australia and Slovakia. It even forms as a green patina on bronze in polluted city air.
Contains copper — do not ingest, lick, or make crystal water or elixirs from this mineral; it is also slightly water-soluble.
Wash hands after handling. Do not grind or polish it dry or inhale its dust, and keep it away from children and pets.
Its rich emerald-to-dark green, from copper, is the heart-coloured signature of a striking secondary copper mineral.
It forms in acidic, dry, sulfate-rich settings and is a major copper ore at Chuquicamata — a quiet workhorse as well as a collector's crystal.
The same chemistry grows as part of the green weathering crust on bronze statues in sulfur-polluted city air.
"The wish within a human being is the most powerful energy that exists."— Swami Rudrananda
Antlerite is a stone of the heart — and the heart is the centre of all the chakras, the bridge that joins the upper centres to the lower and the great healing place for the emotions, where the Vishnu granthi, the knot of stored hurt and old feeling, sits. Its deep copper green is the heart's own colour. Its frequency rests right at that centre with a strong, solid transmission, working over hours and days to reach beneath a feeling rather than only soothing its surface.
It is an Expanding stone: its energy radiates outward from the heart through the layered bodies, so the heart grows larger and more at one with what surrounds it rather than bracing and contracting against hurt. That widening is the source of the emotional resilience the stone is known for — a heart big and fed enough not to be easily knocked over. Fed by Life, that centre keeps its vitality through the work, so one can do heart-centered healing — one's own or others' — while staying grounded and steady rather than drained. And as the lead quote says, the deepest power is the wish within: antlerite strengthens exactly that resilient core of the heart's own quiet resolve.
"Leave everything alone. Leave your mind alone. Leave the world alone. All is well."— Robert Adams
And the Joy it carries is the gladness that wells up once an old emotional knot loosens. So its gift is a steady, green-lit heart — open and expanded, resilient and fed — able to feel fully and heal without losing its footing.