Star sapphire

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Star sapphire

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Uses
Gemcrafting Encrusting
Location
Found within sapphire as individual tiles
Properties
Material value 60☼ Fire-safe Not magma-safe Melting point 11500 °U (x) Boiling point 14000 °U (m) Ignition point none (m) Solid density 4005 kg/m³ Specific heat 800 J/kg·K Color light blue
Wikipedia article

v51.08 · v0.47.05 This article is about the current version of DF. Note that some content may still need to be updated. More Info · V

Star sapphire is an extremely rare and valuable blue gem found in clusters of sapphires, which are themselves only found in clusters of bauxite.

In Real Life

The "star" pattern that this mineral is known for is caused by rutile (Titanium dioxide: TiO₂) crystals that have impregnated the host corundum crystal. Star sapphires are only smoothed into cabochons, as cutting them with facets does not allow the star pattern to be seen.

Star sapphire cabochon.

[show][Select all] Raws
[INORGANIC:SAPPHIRE_STAR] [USE_MATERIAL_TEMPLATE:STONE_TEMPLATE] [TILE:15][IS_GEM:star sapphire:STP:OVERWRITE_SOLID][DISPLAY_COLOR:1:7:1][MATERIAL_VALUE:60] [ENVIRONMENT_SPEC:SAPPHIRE:CLUSTER_ONE:1] [SOLID_DENSITY:4005] Common to corundums. Range 3960 - 4050 [STATE_COLOR:ALL_SOLID:LIGHT_BLUE]

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Precious (40☼)	Emerald • Faint yellow diamond • Ruby • Sapphire
Rare (60☼)	Diamonds (Black • Blue • Clear • Green • Red • Yellow) • Star ruby • Star sapphire
See also: Gizzard stone • Glass • Pearl • Stone