Question

D. Distinguish between the following pairs.
1 .Haematite and siderite​

Answer 1

Explanation:

Hematite, also spelled as haematite, is a common iron oxide compound and is widely found in rocks and soils.Hematite naturally occurs in black to steel or silver-gray, brown to reddish-brown, or red colors. It is mined as an important ore of iron. It is electrically conductive.

Siderite has hardness of 3.75-4.25, a specific gravity of 3.96, a white streak and a vitreous lustre or pearly luster.

It crystallizes in the trigonal crystal system, and are rhombohedral in shape, typically with curved and striated faces.