acicular crystalの例文
- Cyanotrichite forms velvety radial acicular crystal aggregates of extremely fine fibers.
- It is bright yellow in colour and usually has an acicular crystal habit.
- Recrystallization from toluene forms acicular crystals.
- Clinoclase is a rare secondary copper mineral and forms acicular crystals in the fractured weathered zone above copper sulfide deposits.
- Ulexite is found in evaporite deposits and the precipitated ulexite commonly forms a " cotton ball " tuft of acicular crystals.
- It is a colorless to white mineral crystallizing in the monoclinic crystal system typically occurring as prismatic to acicular crystals or granular masses.
- In the Silurian New York strontianite is observed in cavities in eastern Lockport, where it occurs as small white radiating sprays of acicular crystals.
- In groups of acicular crystals it is frequently seen penetrating quartz as in the " fl閏hes d'amour " from Graub黱den, Switzerland.
- Gabbro may be extremely coarse grained to pegmatitic, and some pyroxene-plagioclase cumulates are essentially coarse grained gabbro, some may exhibit acicular crystal habits.
- It occurs as transparent to translucent orange-brown aggregates of subparallel acicular crystals up to 10 mm in length, and as patches of yellow, fibrous crystals.
- It crystallizes in the orthorhombic system and forms translucent bright blue acicular crystal clusters or Refractive indices are n? = 1.588 n? = 1.617 n? = 1.655.
- Finely crystallized specimens have been obtained from the Friedrichssegen mine in Lahnstein in Rhineland-Palatinate, Johanngeorgenstadt in Saxony, StY韇ro in the Czech Republic, Phoenixville in Pennsylvania, acicular crystals of considerable length were found long ago in the Pentire Glaze mine near St Minver in Cornwall.
- At the Minerva Number 1 Mine ( Ozark-Mahoning Number 1 Mine ) Ozark-Mahoning Group, Cave-in-Rock, Illinois, in the Kentucky Fluorspar District, Hardin County strontanite occurs as white, brown or rarely pink tufts and bowties of acicular crystals with slightly curved terminations.