Post by 1dave on Jan 2, 2023 21:32:22 GMT -5
mineralseducationcoalition.org/wp-content/uploads/copperactivity.pdfCOPPER—THE ANCIENT METAL
Mans First use of the Earth's natural resources was in the form of grasses, trees, animals and stone. Tools
and weapons were made from wood, bone and stone.Flint was one of the stones First because it is a hard,
dense mineral. It is one of the purists native forms of silica. A steel knife, today, is no sharper than an
obsidian knife or spear point. Obsidian is a hard, glassy rock that is formed by volcanic eruptions.
Ancient people were our First geologists and miners. They not only determined which rocks were
best to use, but they learned how to make them into tools, hunting spears, arrows, Fishhooks and ornaments.
Shaping the stone was done by Flaking it with sharp blows on the edges using another stone or deer antlers.
Stone-Age people knew nothing of metal. Colorful minerals were used for decoration or for barter. When
emerald-green malachite (a copper ore) or a rusty-red hematite iron ore were found, they would be ground
to a powder and used as pigments to decorate the face and body. They also used these and other colorful
minerals pigments to paint the walls of caves and protected coves. Today, many minerals are used for
paint pigments.
Mans First use of the Earth's natural resources was in the form of grasses, trees, animals and stone. Tools
and weapons were made from wood, bone and stone.Flint was one of the stones First because it is a hard,
dense mineral. It is one of the purists native forms of silica. A steel knife, today, is no sharper than an
obsidian knife or spear point. Obsidian is a hard, glassy rock that is formed by volcanic eruptions.
Ancient people were our First geologists and miners. They not only determined which rocks were
best to use, but they learned how to make them into tools, hunting spears, arrows, Fishhooks and ornaments.
Shaping the stone was done by Flaking it with sharp blows on the edges using another stone or deer antlers.
Stone-Age people knew nothing of metal. Colorful minerals were used for decoration or for barter. When
emerald-green malachite (a copper ore) or a rusty-red hematite iron ore were found, they would be ground
to a powder and used as pigments to decorate the face and body. They also used these and other colorful
minerals pigments to paint the walls of caves and protected coves. Today, many minerals are used for
paint pigments.
... to the New Guys from The ChatBox V.2 Crew