End-member of garnet solid solution. It is one of the most beautiful members of the garnet family. This is because it has greater light dispersibility than diamond. They come in a variety of colors, but the most beautiful ones are yellow, yellow-green, and emerald. It is common in skarn and limestone Hornfels. A stone … Read More
IT terms have been converted into kanji. The act of saving copies of computer data and programs on another hard disk or other storage device in preparation for unforeseen circumstances such as damage, theft, or loss. It can also refer to the copied data or programs themselves. There is no kanji representation for “backup” … Read More
Explanation of Chalcedony A mineral made of extremely fine granular or fibrous quartz. It may also contain a mineral called moganite, which is polymorphic to quartz. There are various colors such as colorless, red, orange (daidai), green, yellow, and black, and there are various variant names. Some are used as decorative stones such as … Read More
Topaz, the birthstone for the month of November, is a beautiful transparent orange-yellow, and its color has been compared to sherry. It is a typical yellow gemstone, and perhaps because of this, jewelry with a yellow color is often given the pseudonym “topaz”. In fact, topaz is a gemstone with a great variety of … Read More
Description for Iron One of the iron group elements. The second most abundant element on Earth after aluminum. Pure iron is silvery-white with a lustrous sheen, highly ductile and malleable, and exhibits ferromagnetism. It rusts readily in air. Its excellent ductility and malleability, combined with carbon-containing steel forms, make it a widely used basic … Read More
A carbon equiaxed crystal mineral with the highest hardness and the highest gloss. It is prized as a gem. It’s called “Kon go seki”.
Description for Amber Fossilized resin from pine trees. Amorphous, resinous luster, transparent to translucent, yellow or reddish-brown. Specific gravity 1.04–1.10, hardness 2–3. Softens at approximately 150°C and melts at 250–300°C. Becomes electrically charged when rubbed, attracting fine dust. Used as an ornamental stone since ancient times. Pieces with high transparency, especially those containing fossilized … Read More
the part of a gunlock that strikes the percussion cap when the trigger is pulled. hammer, cock, striker. One of the rifle firing devices. The part that bangs the detonator to ignite the bullet propellant. Japanese says Geki-tetsu.
