Mineral
Dearest Jewelry (Multigemstone)
Combination of Diamond (C), Emerald (Be3Al2Si6O18), Amethyst/Rock Crystal (SiO2), Ruby (Al2O3), Emerald (Be3Al2Si6O18), Sapphire (Al2O3), and Topaz (Al2SiO4(F,OH)2)
Hardness: 7 to 10 (Mohs); Colors: Clear, Green, Purple, Red, Blue, Yellow; Luster: Adamantine to Vitreous; Crystal Structures: Isometric, Trigonal, Hexagonal, and Orthorhombic.
- Hardness
- 7 to 10 (Mohs)
- Luster
- Adamantine to Vitreous
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Physical properties
Hardness: 7 to 10 (Mohs); Colors: Clear, Green, Purple, Red, Blue, Yellow; Luster: Adamantine to Vitreous; Crystal Structures: Isometric, Trigonal, Hexagonal, and Orthorhombic.
Formation & geological history
Formed through various geological processes including high-pressure carbon crystallization (diamonds), hydrothermal veins (emeralds/amethyst), and metamorphic or igneous crystallization (corundum gems).
Uses & applications
Predominantly used in jewelry as an 'acrostic' ring where the first letter of each gemstone spells the word 'DEAREST' (Diamond, Emerald, Amethyst, Ruby, Emerald, Sapphire, Topaz).
Geological facts
Acrostic jewelry was popularized in the 19th century by French jeweler Jean-Baptiste Mellerio. It was a common romantic gift during the Victorian era to send coded messages through gemstones.
Field identification & locations
Identify by observing the sequence of colors (Clear, Green, Purple, Red, Green, Blue, Yellow). Commonly found in vintage or antique marketplaces and estate jewelry collections.
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Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Schist
Schist
Metamorphic
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Nephrite Jade
Nephrite
Mineral/Rock
Banded Gneiss (River Rock/Pebble)
Gneiss (specifically a banded variety often found as a river rock)
Metamorphic Rock