Star sapphire

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Star sapphire

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Graphic
Uses
Gemcrafting Encrusting
Location
Found within sapphire as individual tiles
Properties
Rough gem:
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

v50.15 · 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 sapphires are extremely rare blue gems found in clusters of sapphires, which are themselves only found in clusters of bauxite - among the most valuable gems that can be found in Dwarf Fortress, on par with diamonds.

This article or section contains minor spoilers. You may want to avoid reading it.

Like all precious and rare gems, they may also make up part of the walls of unusual volcanic walls.

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.

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]

V · T · E Gems
Ornamental (2☼-15☼)	Chrysocolla • Lapis lazuli • Pyrite • Tiger iron • Turquoise • Variscite Agates Banded agate • Dendritic agate • Fire agate • Fortification agate • Lace agate • Moss agate • Plume agate • Tube agate Feldspars Moonstone • Sunstone Jades Blue jade • White jade • Lavender jade • Pink jade Jaspers Brown jasper • Picture jasper • Yellow jasper Opals Amber opal • Bone opal • Cherry opal • Gold opal • Jasper opal • Milk opal • Moss opal • Onyx opal • Pineapple opal • Pipe opal • Prase opal • Resin opal • Shell opal • Wax opal • Wood opal Quartzes Aventurine • Chrysoprase • Citrine • Bloodstone • Carnelian • Gray chalcedony • Milk quartz • Morion • Prase • Rock crystal • Rose quartz • Sard • Sardonyx • Smoky quartz • Onyx • Tigereye • White chalcedony Tourmalines Clear tourmaline • Schorl
Semi-Precious (20☼-30☼)	Amethyst • Green jade • Kunzite • Light yellow diamond • Peridot • Tanzanite • Topaz Beryls Aquamarine • Golden beryl • Goshenite • Heliodor • Honey yellow beryl • Morganite • Red beryl • Topazolite Chrysoberyls Alexandrite • Cat's eye • Chrysoberyl Garnets Almandine • Black pyrope • Blue garnet • Clear garnet • Demantoid • Melanite • Pink garnet • Red pyrope • Rhodolite • Violet spessartine • Yellow spessartine Grossulars Cinnamon grossular • Red grossular • Tsavorite • Yellow grossular Opals Bandfire opal • Black opal • Claro opal • Crystal opal • Fire opal • Harlequin opal • Jelly opal • Levin opal • Pinfire opal • Precious fire opal • Red flash opal • White opal Zircons Black zircon • Brown zircon • Clear zircon • Green zircon • Red zircon • Yellow zircon Tourmalines Green tourmaline • Pink tourmaline • Indigo tourmaline • Red tourmaline Spinels Purple spinel • Red spinel • Rubicelle
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