human green eye
Types of green stones: precious, semi-precious. Green stones: special properties, meaning, photo
Characteristics of green color The ray of light itself has no color, but different colors
Blue gold
Blue gold: history of production and composition of blue metal
For hundreds of years, gold has always been associated with the shiny yellow metal. Modern assortment
Antimonite – a stone of spiritual self-improvement
Formula of stibnite Sb2S8 Contents Chemical composition Crystallographic characteristics Form of occurrence in nature Physical properties
Ring with tourmaline
Tourmaline: medicinal properties, use in medicine
Remember the stories of grandmothers about how our ancestors lived until they were one hundred and throughout their lives,
The skin under the golden ring turns black
A finger turned black from a gold or silver ring: the main reasons
Post updated: July 11, 2020 Everyone knows that gold is a noble metal. More often
Diamond hardness and strength
Diamond hardness and strength: basic physical characteristics
Diamond is a mineral that is outstanding in every way. Like an unsightly doll (a diamond nugget really doesn’t look
Cross section of a Smithsonite crystal
Smithsonite stone - properties, meaning and influence on different signs of the Zodiac
Category Carbonates (minerals) Name in English. Smithsonite Formula ZnCO3 Group Carbonate Group Color White, Blue,
Uranium: properties, methods of extraction and enrichment, application
At the end of the 18th century, chemist Martin Claporte initiated the study of uranium. Discovered "resin blend"
Sedimentary rocks - main characteristics, types and structure
There are 3 types of rocks - sedimentary, igneous - intrusive (intruded) and effusive
Indian corundums
How to choose the right ruby? How to detect fake and synthetic rubies?
Color assessment. A ruby ​​with an intense red hue is more valuable than less vibrant stones. Color
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