Lonsdaleite
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Lonsdaleite, also called hexagonal diamond in reference to the crystal structure, is an allotrope of carbon with a hexagonal lattice, as opposed to the cubical lattice of conventional diamond. Wikipedia
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Lonsdaleite was first identified in 1967 from the Canyon Diablo meteorite, where it occurs as microscopic crystals associated with ordinary diamond.
Sep 28, 2022 · Yet a rare form of diamond known as lonsdaleite—a crystal with carbon atoms arranged in flexing three-dimensional hexagons—may be even harder ...
Sep 14, 2022 · Lonsdaleite is believed to be 58% harder than an Earth-sourced diamond, which is saying a lot because conventional diamonds register a perfect ...
Sep 16, 2022 · The stone, called lonsdaleite, has a hardness and strength that exceeds that of a regular diamond. ... lonsdaleite, diamond and graphite, ...
Feb 28, 2024 · Lonsdaleite ; Hardness: 7 - 8 ; Specific Gravity: 3.2 ; Crystal System: Hexagonal ; Name: Named in honor of Dame Kathleen Lonsdale (nee Yardley) (28 ...
Nov 20, 2014 · Lonsdaleite, also called hexagonal diamond, has been widely used as a marker of asteroidal impacts. It is thought to play a central role ...
However, despite extensive efforts, lonsdaleite has never been produced or described as a separate, pure material. Here we show that defects in cubic diamond ...
May 8, 2023 · Lonsdaleite is the mineral name given to the hexagonal diamond component in the hard carbon grains from the Canyon Diablo iron meteorite (1).
Lonsdaleite Mineral Data ; Help on Density: Density: 3.3 - 3.52, Average = 3.41 ; Help on Diaphaneity: Diaphaneity: Translucent to Opaque ; Help on Habit: Habit: ...