Hematite is the primary, globally abundant ore of iron (\(Fe_{2}O_{3}\)), typically appearing as matte gray, black, or metallic, though it always leaves a reddish-brown streak. It is used for steel production, pigments, and jewelry. Formed over 2.5 billion years ago by oxygenation in oceans, it thrives in sedimentary environments, has a hardness of 5.5 to 6.5, and usually has a metallic luster.

Hematite
from the UK

#hematite #specularhematite #gemstone #mineral #gemology #mineralogy #geology #silver #metallic #mineralspecimen #uk #cumbria #england #nature #beauty #luster #hardness

Goo:
#Meter Check
Test the #Hardness of #Diamond N Atlantic:
it won't match the measurement in #Australia.
#UNSC solves declaring #Material Hardness too temperature-dependent for #metrology, rather than #admit Earth's Aetheric #Density physically alters Strength of Reality.
#vss365 #crazed #science

Konnte nicht bis heute Nacht warten. Und heute war es wieder bitter nötig... Zudem wurde ich heute morgen scharf gemacht nur allein indem wir nerdy getextet haben...😮‍💨
#Hardness #Lust #Ungebändigt