49g Ruby on Marble Matrix – Sar-e-Sang, Etched Crystals – 5.2 x 3.3 x 2.2 cm Crystals on matrix- 49 g





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A 49 g natural ruby (corundum) crystal specimen on marble matrix, with two main crystals and smaller grains, from the Sar-e-Sang region of Badakhshan, Afghanistan.
Description from the seller
This matrix specimen comes from the marble of the Sar-e-Sang region, high in the Hindu Kush in Afghanistan’s Badakhshan Province. Two main crystals and several smaller ruby grains remain embedded in their host rock.
Their red is deep and bloodlike, their surfaces naturally etched. No face is smooth; each bears a velvety-matte, frosted veil, yet all are wrapped in infinite depth of color. The larger crystal still reveals its hexagonal outline, the basic form of corundum. Yellow-green, mica-like flakes and fine rust-colored specks surround the rubies in the white-gray, granular marble.
Under UV light, the rubies glow an intense red, and even inconspicuous smaller grains reveal themselves as red points of light. A fine, whitish-blue glowing network also appears around the crystals, while the rest of the marble merely shimmers bluish.
Rubies’ ability to grow in marble at all is owed to a salty legacy. According to the current model, hot fluids dissolved ancient salt layers in the marble, releasing aluminum and chromium that had been present only in trace amounts in the original limestone. These fluids began circulating when the collision of India with Asia raised the Himalayan system, between 40 and 5 million years ago, depending on the deposit. Each of these crystals is therefore also a witness to that mountain-building process.
A powerful matrix specimen for collectors seeking ruby in its most natural form.
Material: Ruby (corundum, Al₂O₃) on marble
Origin: Sar-e-Sang region, Badakhshan, Afghanistan
Weight: 49 g (entire specimen, including matrix)
Dimensions: 5.2 x 3.3 x 2.2 cm
Matrix: White-gray, granular marble
Fluorescence: Rubies glow an intense red under UV; a whitish-blue glowing network around the crystals; marble shimmers bluish
Treatment: None; natural matrix specimen
Special features: Two main crystals and several smaller ruby grains; naturally etched, velvety-matte crystal surfaces; hexagonal outline on the larger crystal; yellow-green, mica-like flakes and rust-colored specks in the matrix; brownish outer crust along one narrow side
Seller's Story
This matrix specimen comes from the marble of the Sar-e-Sang region, high in the Hindu Kush in Afghanistan’s Badakhshan Province. Two main crystals and several smaller ruby grains remain embedded in their host rock.
Their red is deep and bloodlike, their surfaces naturally etched. No face is smooth; each bears a velvety-matte, frosted veil, yet all are wrapped in infinite depth of color. The larger crystal still reveals its hexagonal outline, the basic form of corundum. Yellow-green, mica-like flakes and fine rust-colored specks surround the rubies in the white-gray, granular marble.
Under UV light, the rubies glow an intense red, and even inconspicuous smaller grains reveal themselves as red points of light. A fine, whitish-blue glowing network also appears around the crystals, while the rest of the marble merely shimmers bluish.
Rubies’ ability to grow in marble at all is owed to a salty legacy. According to the current model, hot fluids dissolved ancient salt layers in the marble, releasing aluminum and chromium that had been present only in trace amounts in the original limestone. These fluids began circulating when the collision of India with Asia raised the Himalayan system, between 40 and 5 million years ago, depending on the deposit. Each of these crystals is therefore also a witness to that mountain-building process.
A powerful matrix specimen for collectors seeking ruby in its most natural form.
Material: Ruby (corundum, Al₂O₃) on marble
Origin: Sar-e-Sang region, Badakhshan, Afghanistan
Weight: 49 g (entire specimen, including matrix)
Dimensions: 5.2 x 3.3 x 2.2 cm
Matrix: White-gray, granular marble
Fluorescence: Rubies glow an intense red under UV; a whitish-blue glowing network around the crystals; marble shimmers bluish
Treatment: None; natural matrix specimen
Special features: Two main crystals and several smaller ruby grains; naturally etched, velvety-matte crystal surfaces; hexagonal outline on the larger crystal; yellow-green, mica-like flakes and rust-colored specks in the matrix; brownish outer crust along one narrow side

