(n.) Common or potash feldspar crystallizing in the monoclinic system and having two cleavages at right angles to each other. See Feldspar.
Example Sentences:
(1) The authors have found out that fly-ashes included mainly quartz, orthoclase and mullite.
(2) These strains possess better ability to utilize the orthoclase and biotite.
(3) All the ashes have been found to contain: quartz and mullite, 3 ashes contained additionally orthoclase, whereas 1, apart from quartz and mullite, contained kaolinite; naturally radioactive elements (Ra226, K40, Th228) and trace elements (As, Ba, Be, Cd, Ce, Cu, Fe, Pa, Mo, Ni, Pb, Se, U Zu).
(4) In all ash samples alpha-quartz and mullite were found: in some of them also kaolinite and orthoclase were traced.
(5) The following crystalline phases were determined in the materials: kaolinite, illite, quartz, orthoclase and microline.
(6) It was impossible to ascertain whether these synthetic crystals may be sanidine, orthoclase, or microcline.
Plutonic
Definition:
(a.) Of or pertaining to Pluto; Plutonian; hence, pertaining to the interior of the earth; subterranean.
(a.) Of, pertaining to, or designating, the system of the Plutonists; igneous; as, the Plutonic theory.
Example Sentences:
(1) The causative agent of American foulbrood is Bacillus larvae, the causes of the European foulbrood diseases are Streptococcus pluton and Bacillus alvei and the causes of the septicemia are Pseudomonas apiseptica and Escherichia coli in honeybees (Apis mellifera).
(2) Four small towns in the pluton area were investigated in the valley of the river Cervo.