Trigonometry Terms
Trigonometry Terms Trigonometry is a branch of mathematics that studies relationships involving lengths and angles of triangles. The study of angles and of the angular relationships of planar…
Science
Aleksite
Aleksite is a rare lead-bismuth tellurium sulfosalt mineral with formula PbBi2Te2S2. This is a trigonal-hexagonal scalenohedral steel-gray mineral containing bismuth, lead, sulfur, and tellurium. It…
Aldermanite: Physical and Chemical Properties
Aldermanite is a rare hydrated phosphate mineral with formula Mg5Al12(PO4)8(OH)22·32H2O. This is an orthorhombic colorless mineral containing aluminum, hydrogen, magnesium, oxygen, and phosphorus. It’s named…
Albrechtschraufite
Albrechtschraufite is a very rare complex hydrated Ca- and Mg-bearing uranyl fluoride carbonate mineral with formula Ca4Mg(UO2)2(CO3)6F2·17H2O. This is a triclinic-pinacoidal yellow-green mineral containing calcium,…
Finding the Fourth Angle of a Quadrilateral
Finding the Fourth Angle of a Quadrilateral Quadrilaterals are four-sided polygons, with four vertexes, whose total interior angles add up to 360 degrees. A quadrilateral…
Albite: Occurrence and Identification
Albite is a plagioclase feldspar mineral. It belongs to the Plagioclase Feldspar group, an isomorphous solid solution series. It is the sodium endmember of the…
Alarsite
Alarsite, formula- (AlAsO4) is an aluminum arsenate mineral with its name derived from its composition: aluminum and arsenate. It is a trigonal mineral. It occurs…
Alamosite
Alamosite, formula- (Pb12Si12O36) is a colorless silicate mineral named after the place where it was discovered, Álamos, Sonora, Mexico. It is named for the type…
Rules of Surds
Surds are numbers left in root form (√) to express its exact value. It has an infinite number of non-recurring decimals. Therefore, surds are irrational…
Finding the Third Angle of a Triangle
Finding the Third Angle of a Triangle Finding the third angle of a triangle when you know the measurements of the other two angles is…
Alacránite
Alacránite, formula- (As8S9) is an arsenic sulfide mineral first discovered in the Uzon caldera, Kamchatka, Russia. It forms orange acicular crystals in subparalel groups with…
Alabandite
Alabandite is a rarely occurring manganese sulfide mineral. The name is derived from its supposed discovery locality at Alabanda, Turkey. It crystallizes in the cubic…
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