Star ruby

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Star ruby

☼ ☼ ☼ ☼ ☼ ☼ ☼ ☼ = = = ☼ ☼ ☼ ☼ ☼ = = = ☼ ☼ ☼ ☼ ☼ ☼ = = ☼ ☼ ☼ ☼ ☼ ☼ ☼ =
Uses
Gemcrafting Encrusting
Location
Found within ruby 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 red
Wikipedia article

v52.03 · 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 ruby is an extremely rare red gem found in clusters of rubies, which are themselves only found in clusters of bauxite. They are among the most valuable gems that can be found in Dwarf Fortress, on par with diamonds.

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 rubies are only smoothed into cabochons, as cutting them with facets does not allow the star pattern to be seen.

Star ruby cabochon.

[show][Select all] Raws
[INORGANIC:RUBY_STAR] [USE_MATERIAL_TEMPLATE:STONE_TEMPLATE] [TILE:15][IS_GEM:star ruby:star rubies:OVERWRITE_SOLID][DISPLAY_COLOR:4:7:1][MATERIAL_VALUE:60] [ENVIRONMENT_SPEC:RUBY:CLUSTER_ONE:1] [SOLID_DENSITY:4005] Common to corundums. Range 3960 - 4050 [STATE_COLOR:ALL_SOLID:RED]

[show] V · T · E Gems
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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