9.37g Ruby on Marble – Sar-e-Sang, Obelisk Crystal – 3.3 x 2.1 x 1.3 cm Crystal on matrix- 9.37 g





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A 9.37 g natural ruby crystal on white marble, from the Sar-e-Sang region of Badakhshan, Afghanistan, measuring 3.3 × 2.1 × 1.3 cm.
Description from the seller
Rising from the white marble of the Sar-e-Sang region in Afghanistan’s Badakhshan Province, this ruby stands like an altar or obelisk. The single crystal crowns the top of the matrix, which serves as its pedestal.
It is crossed by numerous fractures and cracks, some of them filled with fine white marble. This makes it appear as though it had shattered into individual segments, yet it retains its unified form. On its end face, the hexagonal cross-section of the corundum is clearly visible. Its color ranges from delicate rose at the edges to deep wine red at the base, with zones of slight translucency in between. Dark gray inclusions and occasional golden-glinting specks are scattered throughout the white, granular matrix.
Under UV light, the ruby glows an intense red. The glow is caused by the same chromium that gives it its color. A further, tiny grain in the matrix reveals itself as a red point of light, while the marble shimmers bluish.
Corundum has no true cleavage. However, it can part along certain crystal planes, usually where twinning has created fine zones of weakness. Unlike cleavage, this parting depends on the history of the individual crystal. This ruby, too, bears its own distinctive pattern of planes and fractures.
An expressive collector’s specimen that still visibly bears the marks of its origin.
Material: Ruby (corundum, Al₂O₃) on marble
Origin: Sar-e-Sang region, Badakhshan, Afghanistan
Weight: 9.37 g / 46.86 ct (complete specimen incl. matrix)
Dimensions: 3.3 x 2.1 x 1.3 cm
Matrix: White, granular marble
Fluorescence: Ruby glows an intense red under UV; marble shimmers bluish
Treatment: None, natural, unworked rough crystal on matrix
Special features: Upright single crystal with a visible hexagonal cross-section; numerous natural fractures, some filled with marble; color gradient from rose to wine red with semitranslucent zones; tiny grain in the matrix that glows red under UV; dark gray inclusions and golden-glinting specks in the matrix
Seller's Story
Rising from the white marble of the Sar-e-Sang region in Afghanistan’s Badakhshan Province, this ruby stands like an altar or obelisk. The single crystal crowns the top of the matrix, which serves as its pedestal.
It is crossed by numerous fractures and cracks, some of them filled with fine white marble. This makes it appear as though it had shattered into individual segments, yet it retains its unified form. On its end face, the hexagonal cross-section of the corundum is clearly visible. Its color ranges from delicate rose at the edges to deep wine red at the base, with zones of slight translucency in between. Dark gray inclusions and occasional golden-glinting specks are scattered throughout the white, granular matrix.
Under UV light, the ruby glows an intense red. The glow is caused by the same chromium that gives it its color. A further, tiny grain in the matrix reveals itself as a red point of light, while the marble shimmers bluish.
Corundum has no true cleavage. However, it can part along certain crystal planes, usually where twinning has created fine zones of weakness. Unlike cleavage, this parting depends on the history of the individual crystal. This ruby, too, bears its own distinctive pattern of planes and fractures.
An expressive collector’s specimen that still visibly bears the marks of its origin.
Material: Ruby (corundum, Al₂O₃) on marble
Origin: Sar-e-Sang region, Badakhshan, Afghanistan
Weight: 9.37 g / 46.86 ct (complete specimen incl. matrix)
Dimensions: 3.3 x 2.1 x 1.3 cm
Matrix: White, granular marble
Fluorescence: Ruby glows an intense red under UV; marble shimmers bluish
Treatment: None, natural, unworked rough crystal on matrix
Special features: Upright single crystal with a visible hexagonal cross-section; numerous natural fractures, some filled with marble; color gradient from rose to wine red with semitranslucent zones; tiny grain in the matrix that glows red under UV; dark gray inclusions and golden-glinting specks in the matrix

