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Crystal System- isometric/cubic 7. Relation to Mining. Streak. Uses Galena is the main ore of lead, used since ancient times.Because of its somewhat low melting point, it was easy to liberate by smelting.It typically forms in low-temperature sedimentary deposits. It is one of the earliest minerals used by humans, and one of the most abundant sulfide minerals on the Earth. and in skarns, as well as in sedimentary rocks where it may replace carbonate beds or be deposited in pore spaces. Galena is a gray, cubic, shiny, dense mineral most commonly associated with lead. Black streak Many minerals have a black or dark grey streak. Each mineral has a streak color, and that color may be shared by other minerals as well. Worked for its lead content as early as 3000 BC, it is found in ore veins with sphalerite, pyrite, chalcopyrite, tennantite-tetrahedrite, etc. Cleavage- fine/perfect Galena is soft, heavy, mineral made of lead sulfide. Graphite is a black mineral with a black streak. Mentre la maggior parte dei minerali hanno una striscia bianca, un paio di minerali noti possono essere identificati dal colore della loro consecutive. Galena Group. Luster- metallic and earthy 4. Galena is an amazing mineral which breaks into cubes when struck with a rock hammer due to its natural cleavage pattern. Unlike the apparent color of a mineral, which for most minerals can vary considerably, the trail of finely ground powder generally has a more consistent characteristic color, and is thus an important diagnostic tool in mineral identification. Galena is the primary ore mineral of lead. Galena is still mined today in large quantities, not only for lead, but also for silver. This mineral has a dark gray streak color and a metallic luster. 1. (Contact Scott Brande) mailto:soskarb@gmail.com. These are some of the characteristics of Galena. The streak of a mineral is the color of the powder produced when it is dragged across an un-weathered surface. Di conseguenza, striscia è considerato un indicatore più stabile rispetto al colore della roccia solida. Connection: Linkedin, Video: Youtube, Research: Researchgate, Work: UAB, Twitter: docfossil Color- grayish black 2. Density- 7.6gm/cm3 5. Other minerals, like galena and pyrolusite are also black or grey with black streaks. Streak- grayish black 3. Hardness- 2.5-3 6. An information card with details on the mineral formation, characteristics, and uses is included. You probably see it every day - it is used to make the 'lead' in your pencil. Alcuni minerali che si verificano in una gamma di colori hanno sempre la stessa consecutive. Amazing mineral which breaks into cubes when struck with a black or dark grey streak is a black dark! Has a dark gray streak color and a metallic luster galena Group large quantities, not only lead. And in skarns, as well as in sedimentary rocks where it may replace carbonate beds be! 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