reaction to an acid
1 Copper 2 Calcite 3 Fluorite 4 Corundum 5 Gypsum 6 Galena
Galena's streak is gray, hematite's streak is deep maroon/brown.
Galena - the ore of lead has been known form ancient times therfore the person who first discovered/identified it is unknown.
Galena is a mineral, lead suphide (PbS), and as such, it is in the group of sulfide minerals. Links can be found below to check facts and learn more.
Sulfur (sometimes spelled as sulphur, although this is not correct by current IUPAC rules) is commonly found near natural hot springs or near volcanoes. It's also found in the combined form in many minerals, such as pyrite and galena.
Pyrite is a mineral that is softer than calcite, has a metallic luster, and exhibits cubic cleavage.
The property that causes galena to break into tiny cubes is its cleavage. Galena exhibits perfect cubic cleavage, meaning that when struck or broken, it tends to break along smooth, flat planes that are parallel to the cube faces of the crystal structure.
Barite Calcite Carnotite Dolomite Feldspar Galena Geodes Gold Gypsum Hematite Limonite Marcasite Metatorbernite Mica Pyrite Quartz Silver Sphalerite
The most useful physical property for identifying galena would be its metallic luster and its high density. Galena has a metallic luster and is one of the densest minerals, so these characteristics can be helpful in distinguishing it from other minerals.
1 Copper 2 Calcite 3 Fluorite 4 Corundum 5 Gypsum 6 Galena
Cleavage of galena is the tendency of the mineral to break along planes of weakness, resulting in smooth, flat surfaces. Galena exhibits perfect cleavage in three directions at right angles to each other, producing cubic or octahedral shapes. This property is a result of the crystal structure of galena.
The mineral might be pyrite, which has a hardness lower than calcite, a metallic luster, and cubic cleavage. Pyrite's hardness is around 6-6.5 on the Mohs scale, compared to calcite's 3. It forms cubic crystals and has a brassy color.
The six classes of non-silicate minerals are carbonates, sulfides, sulfates, halides, native elements, and oxides. Each class is defined by the chemical composition and structure of the minerals within that group.
Quartz- hardness 7 on Mohs Scale. (Calcite: 3, galena 2.5, talc 1)
Silver chloride, magnesium carbonate, lead sulphide.
The address of the Galena Public Library is: 315 W. 7Th Street, Galena, 66739 1211
Galena is steel grey.