A jack for pulling posts. See also:post puller
Standard, 2; Fay
Movement usually along a fault that occurs after a mineral has been
deposited.
An igneous intrusion that took place after an orogenic event or cycle.
An electric vehicle having a powered drum for handling wire rope used to
pull mine props after coal has been removed; used for the recovery of the
timber.
A coal-mining machine of the puncher type supported by a post. Fay
An English term for any fine-grained sandstone or limestone. Also spelled:
poststone. AGI
a. A vessel for holding molten metal. ASM, 1
b. An electrolytic reduction cell used to make such metals as aluminum
from fused electrolyte. ASM, 1
c. Mud-filled stump of Sigillaria in an upright position in the roof of
certain coal seams. The stump became hollow by decay of the central pithy
part, the hollow being filled by mud. This stump is now a separate mass of
shale and is liable for collaspse without warning.
See also:caldron bottom; pot bottom. Nelson
d. A colloquial syn. of seismic detector. AGI
e. See:abyss; line oiler.
A tetragonal mineral, PdHg ; silver white. Syn:palladium amalgam
Potassium carbonate, K2 CO3 ; formerly extracted from wood
ashes; used as a component of glasses, glazes, and enamels to enhance
colorants. Also called pearl ash. Syn:potassium carbonate
See:kalinite; alum; potassium alum.
The retention of potassium in clays either by chemical combination in clay
minerals or by adsorption. AGI
See:muscovite
See:potassium feldspar; spar. CF:soda spar
A syenite with a large excess of potassium feldspar (microcline,
orthoclase) or feldspathoid over sodium feldspar (albite).
Of, pertaining to, or containing potassium; relating to or containing
potash. Standard, 2
A highly reactive metallic element of the alkali group; it is soft, light,
and silvery. Symbol, K. Occurs abundantly in nature; obtained from the
following minerals: sylvite, carnallite, langbeinite, and polyhalite. The
greatest demand is for use in fertilizers.
Handbook of Chemistry and Physics, 3
An isometric mineral, KAl(SO4 )2 .12H2 O .
Syn:potash alum
See:feldspar
A synthetic phosphate with K replacing Ca.
A clay of the illite group, formed by the alteration of volcanic ash; a
metabentonite. Syn:K-bentonite