Painite

Lore & Background

Painite is a rare borate mineral first identified in Myanmar by the British mineralogist and gem dealer Arthur C.D. Pain, who initially mistook it for ruby. It was not until the 1950s that it was recognized as a new mineral species and named in his honor. Its chemical composition consists of calcium, zirconium, boron, aluminum, and oxygen, with the formula CaZrAl9O15(BO3). Trace amounts of chromium and vanadium are responsible for its typical orange-red to brownish-red color, which resembles that of topaz. The mineral’s scarcity arises because zirconium and boron rarely interact in natural environments. Painite crystals are naturally hexagonal in shape, though they can also be euhedral or orthorhombic; they may occasionally lack crystalline structure, but most specimens exhibit some form of crystal structure. Until late 2004, only two painite specimens had ever been cut into faceted gemstones. The mineral is known from an extremely small region centered on the area around Mogok in Myanmar. Extensive exploration there has identified several new occurrences, leading to the recovery of several thousand additional painite specimens.

Reader's Guide

Painite is a borate mineral of exceptional rarity, first identified in Myanmar by the British mineralogist and gem dealer Arthur C.D. Pain. Pain initially misidentified the specimen as ruby, but it was later recognized as a new mineral species during the 1950s and subsequently named in his honor. The mineral’s chemical composition includes calcium, zirconium, boron, aluminium, and oxygen, with trace amounts of chromium and vanadium imparting an orange-red to brownish-red color reminiscent of topaz. Its scarcity arises from the rare natural coexistence of zirconium and boron. Painite crystals are naturally hexagonal, though they may also appear euhedral or orthorhombic; some specimens lack crystalline structure entirely, though most are accompanied by some form of crystal organization. Until late 2004, only two painite specimens had ever been cut into faceted gemstones. Extensive exploration in the Mogok region of Myanmar, which encompasses nearly all of the mineral’s known occurrence area, has since yielded several thousand new specimens, though the mineral remains confined to this very small geographic zone. The mineral’s significance lies in its extreme rarity, the historical role of an individual collector in its discovery, and its distinctive crystal habits, which make it a prized subject for both mineralogists and collectors.

Did You Know?

• Painite was first misidentified as ruby by its discoverer, Arthur C.D. Pain.
• The mineral's color comes from trace amounts of chromium and vanadium.
• Painite's rarity is due to zirconium and boron rarely interacting in nature.