Quartz - description of the properties of the mineral for children in grade 2
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The composition of granite - a description for children about the constituent minerals of granite (grade 2, the world around us)
The composition of granite - a description for children about the constituent minerals of granite (grade 2, the world around us)
Granite is a rock formed in the depths of the Earth. When hot magma finds its way out
enamel art
History of the origin and development of the art of enamel
The art of enamel of the late XIX - early XX centuries The art of enamel has been known in Rus' since
Artificial and natural gems: how to choose the right one?
Synthetic jewelry stones This group includes complete analogues of natural stones. They have a similar
how to besiege gold
Algorithm and necessary substances for gold deposition
Gold solvents are substances that can act on the precious metal and transform the element into
What are major pearls and are they real: properties, meaning and description
What are Mallorca pearls? Unlike natural pearls, Majorca pearls are produced without harm to
Artificial pond
Decorating the territory with stones: the main rules for creating compositions
Natural stone is a universal component of landscape design. It harmonizes with any plants, trees
Russian gold bars
Gold mining in Russia: features, history and interesting facts
Post updated: May 26, 2020 Coins and other gold products in Russia are always
Heliotrope stone
Extraordinary heliotrope: properties and use of stone in jewelry
The ancient Greeks attributed to it the ability to turn the sun. Otherwise they called it the stone of the sun. IN
Russia is the leader in the world diamond market, but others sell diamonds
The Diamond Fund of Gokhran has such an exhibit - a map of Russia, made entirely of diamonds.
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