What's the difference between crust and feldspar?

Crust


Definition:

  • (n.) The hard external coat or covering of anything; the hard exterior surface or outer shell; an incrustation; as, a crust of snow.
  • (n.) The hard exterior or surface of bread, in distinction from the soft part or crumb; or a piece of bread grown dry or hard.
  • (n.) The cover or case of a pie, in distinction from the soft contents.
  • (n.) The dough, or mass of doughy paste, cooked with a potpie; -- also called dumpling.
  • (n.) The exterior portion of the earth, formerly universally supposed to inclose a molten interior.
  • (n.) The shell of crabs, lobsters, etc.
  • (n.) A hard mass, made up of dried secretions blood, or pus, occurring upon the surface of the body.
  • (n.) An incrustation on the interior of wine bottles, the result of the ripening of the wine; a deposit of tartar, etc. See Beeswing.
  • (n.) To cover with a crust; to cover or line with an incrustation; to incrust.
  • (v. i.) To gather or contract into a hard crust; to become incrusted.

Example Sentences:

  • (1) In certain cases the ulcerous crust is removed with chloramine.
  • (2) A rapid evolution of epithelialization was found in case of treated animals as distinguished from control sample, where the infected crust was far from being healed.
  • (3) Future ice loss and bending of the crust due to rising sea levels have the potential ultimately to raise levels of both earthquake and volcanic activity.
  • (4) A search for an intact blister is always warranted when erosions, oozing, or crusts are noted.
  • (5) In general, healthy panelists evaluated the cakes as sweeter, crust bitterness as greater, and overall eating quality as higher than the panel members with carbohydrate metabolic disorders.
  • (6) The tanks fell from 2,000ft on to the salt crust of the open desert and burst open as they struck the ground.
  • (7) A negative correlation between the number of mites and the presence and extensiveness of crusts was observed.
  • (8) The presence of subcorneal pustules in a solitary, indolent, crusted plaque, or in erythema annulare-like lesions with a trailing scale, is evidence of atypical psoriasis.
  • (9) Requirements for intranasal douching with saline have varied; however, we have had no problems with bothersome crusting following b.i.d.
  • (10) Disadvantages are a longer healing period and temporary crust formation as in conchotomy, the high technical effort and cost of the laser.
  • (11) Crusting was found around the lashes, and the lids developed loss of lashes and hair.
  • (12) Within three weeks after treatment was initiated, all animals were free of crusts.
  • (13) After the crust falls, carrying away some tattoo pigment on its deeper surface, a pale-pink scar forms, then gradually fades in several months.
  • (14) We report a case of nonvesicular hydroa vacciniforme in which only extensive crusting associated with hypertrophic scarring on sun-exposed skin was present.
  • (15) The absorption of mercury was investigated after three phase crusting by Grob on a second-degree scald burn of 10 to 15% of the body surface in rats.
  • (16) For oxalate stones a separation of the outer layer (crust) from the inner layer (core) marked the point of maximum load.
  • (17) The vesicles progress to pustules, then to crusts that eventually are lost.
  • (18) A case of localized CrS appearing as a yellowish and crusted plaque on the second right toe is reported in a woman with AIDS.
  • (19) All the patients were elderly women who developed chronic, extensive, pustular, crusted and occasionally eroded lesions of the scalp which produced scarring alopecia.
  • (20) For all their apparent beauty and fragility, just think of coral reefs as big lumps of rock with a living crust.

Feldspar


Definition:

  • (n.) Alt. of Feldspath

Example Sentences:

  • (1) The quantitative mineralogical analysis of small samples (less than 20 mg) of china clay has been investigated using x ray diffractometry to determine kaolinite, mica, quartz, and feldspar.
  • (2) The resulting feldspar-alumina composites were compared for shrinkage then cut and prepared into disc specimens.
  • (3) The lung dust composition in this case was approximately 43% silicon carbide, 24% aluminium oxide, 2.3% cristobalite, 2.0% quartz, and trace of talc and feldspar.
  • (4) Quartz, calcite, feldspar, smectite, inter-stratified phases, kaolinite, amphibole, muscovite and dolomite are other contaminating minerals.
  • (5) The conventional feldspar ceramic is then placed onto this very resistant (more than 580 MPa flexural strength) and exceptionally well adapted framework.
  • (6) The adhesion of Salmonella typhimurium to the mineral particles quartz, albite, feldspar, and magnetite was shown to correlate with the hydrophobicity of the cell surface as measured by hydrophobic interaction chromatography.
  • (7) Significant numbers of primary lung tumors, principally adenocarcinomas and adenomas, were seen in the copper slag (p = 0.005 and p = 0.022 for the primary and secondary slags, respectively), in the feldspar (p = 0.007), in the novaculite (p less than 0.001), and in the Min-U-Sil (p less than 0.001) groups when compared to the vehicle control group.
  • (8) Besides low leucite and glass, we have found a second crystalline phase in the sintered and slow-cooled porcelains that we propose to be potash feldspar (K2O.Al2O3.6SiO2).
  • (9) An application of high-resolution transmission electron microscopy (HRTEM) to the study of two types of dislocations in potassium feldspars (K-feldspars) is shown here.
  • (10) Eighty-eight were of mineral origin, mainly quartz and feldspar, and it is believed that the great majority were submitted for secondary gain or for psychiatric reasons.
  • (11) Feldspar-alumina composites shrank approximately 30%; shrinkage of 15-20% occurred only in composites involving spherical alumina (average particle size 5.4 microns).
  • (12) Kaolinite, talc, mica, feldspars, and crystalline silica comprised the majority of particles of both groups.
  • (13) If the soil where potatoes are grown contains feldspars, sprout inhibition treatment with 100-200-Gy doses can also be detected for up to one year, using the 90-250 degrees C low-temperature part of the TL spectrum for evaluation.
  • (14) Composites of feldspar and spherical alumina were observed to be stronger than those of feldspar and nonspherical alumina.
  • (15) The major reaction seen in both the feldspar- and the novaculite-treated rats was a granulomatous inflammation with varying degrees of fibrosis associated with the granulomas.
  • (16) A 140% increase in the breaking strength of Keradens facings may be achieved by ion exchange, i.e., by substitution of the small sodium ions in soda feldspar by the larger potassium ions, which is done by melting the soda feldspar with potassium nitrate.
  • (17) The rare earths were added to a potassium feldspar glass host and emission spectra were measured.
  • (18) Exposure to mica is usually associated with exposure to other minerals such as quartz and feldspar.
  • (19) Quartz and feldspar were determined direct from prepared calibration graphs.
  • (20) The degradability of DNA adsorbed to minor mineral fractions (feldspar and heavy minerals) of the sand differed from that of quartz-adsorbed DNA.