What's the difference between flint and quartz?

Flint


Definition:

  • (n.) A massive, somewhat impure variety of quartz, in color usually of a gray to brown or nearly black, breaking with a conchoidal fracture and sharp edge. It is very hard, and strikes fire with steel.
  • (n.) A piece of flint for striking fire; -- formerly much used, esp. in the hammers of gun locks.
  • (n.) Anything extremely hard, unimpressible, and unyielding, like flint.

Example Sentences:

  • (1) Caroline Flint, a Labour MP and former cabinet minister, called for all corporate tax affairs to be made public.
  • (2) These data imply that Silvadene controls S aureus-generated burn wound infections better than the Flint product.
  • (3) HSBC’s shares have been on a rollercoaster ride since Gulliver and departing chairman Douglas Flint took charge six years ago, and are little changed from where they started out.
  • (4) Retreating to your lab and hoping it will all go away is not going to be the best strategy Andrew Rosenberg, National Oceanic and Atmospheric Administration In March, Bill Nye , the bow-tied embodiment of science for many Americans, and Mona Hanna-Attisha, a pediatrician who alerted the world to soaring levels of lead in the blood of children in Flint, Michigan, were named as honorary co-chairs.
  • (5) Caroline Flint, Labour's spokesperson for energy and climate change, said the Ofgem report showed why a price freeze is needed: "Labour's price freeze will save money for 27 million households and 2.4 million businesses and our plans to reset the market will deliver fairer prices in the future.
  • (6) 'Archaeology on steroids': huge ritual arena discovered near Stonehenge Read more Archaeologists have found evidence that a big tree fell over and its base provided a wall which was then lined with flint.
  • (7) Flint became the first Home Office minister to admit that she tried smoking dope while a student in the 80s, a fact she revealed when pushing reclassification of cannabis through the Commons.
  • (8) A 17-day, in situ, biomonitoring study using caged, juvenile channel catfish (Ictalurus punctatus) was conducted at five sites along a 9-km section of the Flint River at the Anthony Ragnone Wastewater Treatment Plant near Montrose, Michigan.
  • (9) Flint walked out in protest at not being offered a full cabinet post.
  • (10) He said Douglas Flint, chairman of HSBC, and Lord Blackwell, the new chairman of Lloyds Banking Group, would agree with his view that chairing a bank was a full-time role.
  • (11) But Brown says he worked "very, very closely" with Flint when she was housing minister.
  • (12) Figures close to Brown were irritated that Flint was finding time to pose for the cameras while they felt she had yet to master the highly intricate details of her brief as Europe minister.
  • (13) The people of the New England electorate, with Barnaby Joyce as their MP, had thought he would be able to protect the Liverpool Plains for them,” Lock the Gate Alliance spokeswoman Carmel Flint told reporters.
  • (14) Tempers frayed at the last debate in Flint, Michigan, at the weekend, when Clinton accused Sanders of voting against the auto industry bailout – a charge he vehemently denies and that appears not to have swayed voters at the centre of the US car industry.
  • (15) A controversy exists with regard to the relative efficacy of two preparations of silver sulfadiazine (AgSD), Silvadene and Flint's Silver Sulfadiazine Cream.
  • (16) When asked about this, Flint said: “Nobody wants to push the button.
  • (17) Caroline Flint, shadow energy and climate change secretary, said the referral underlined why her party was committed to breaking up the big six and freezing energy bills till 2017, should it win power in elections next year.
  • (18) Flint said five months was too long to wait; a new leader would boost Labour in the polls and attract new funding from supporters.
  • (19) The water crisis in Flint is a sobering reminder of America’s long history of disregard when it comes to the welfare of black bodies – I am not the first to note how eerily reminiscent it is of the Tuskegee Experiment in the 1970s, when hundreds of black men with syphilis were not told they had the disease so that US Public Health Services could study its progression.
  • (20) Flint said the public was fed up with hearing the "same old excuses" from the energy industry.

Quartz


Definition:

  • (n.) A form of silica, or silicon dioxide (SiO2), occurring in hexagonal crystals, which are commonly colorless and transparent, but sometimes also yellow, brown, purple, green, and of other colors; also in cryptocrystalline massive forms varying in color and degree of transparency, being sometimes opaque.

Example Sentences:

  • (1) There fore, the adverse effects may be induced by such quartz or silicon compounds.
  • (2) We have previously shown that intratracheally instilled silica (quartz) produces both morphologic evidence of emphysema and small-airway changes, and functional evidence of airflow obstruction.
  • (3) Lung sections of rats exposed to quartz particles were significantly different.
  • (4) Exposures to quartz amounting to less than about 10 per cent of mixed coal mine dust do not generally affect the probability of developing simple pneumoconiosis.
  • (5) The effect of quartz, bentonite and coal dusts as well as the effect of the artificial mixture of these dusts on TTC reduction and extra-and intra-cellular lactate dehydrogenase activity in peritoneal rat macrophages was determined in vitro.
  • (6) Silica quartz dust, a direct toxin of macrophages, suppressed demyelination and inflammation if begun at time of virus infection.
  • (7) As expected the proportion of quartz was greater in lymph nodes and lungs from men who had worked "low" rank (high ash) coal.
  • (8) Guinea pig splenic lymphocytes and peritoneal macrophage cultures were incubated with quartz (DQ12), Corundum and aspirin as prostaglandin inhibitor.
  • (9) A surgical system using 308 nm excimer laser radiation transmitted by quartz fibers is described.
  • (10) Cancer incidence and cause-specific mortality were studied in a male cohort of 94 talc miners and 295 talc millers, exposed to non-asbestiform talc with low quartz content.
  • (11) The pulsed dye laser can effectively fragment biliary calculi when transmitted through a small-diameter quartz fiber and may be useful as a tool for fragmenting retained common duct stones.
  • (12) In mice bearing the highly metastatic tumors B16 melanoma and Lewis lung carcinoma (LLC) treated with Hpd and laser light delivered through a quartz fiber optic significantly prolonged the median survival time.
  • (13) With a long-term (1 and 4 months) introduction of an additional amount of edible fats (beef, hog fats, butter, sunflower seed oil) to intact and intratracheally quartz-dust laden sexually mature male rats an organ-specific reaction to the supply of fat, and in intact rats, also some peculiarities of the reaction depending upon the kind of the introduced fats, were discovered.
  • (14) Using a fluorescence microscope with quartz optics and an image analyser, it was possible to measure the intracellular concentration of free calcium ions [Ca2+]i in single microvessels for the first time.
  • (15) The median amount of quartz for all cases, was 0.044 grams.
  • (16) The microscope is focused on an in-line quartz flow cell incorporated down stream of a microbore HPLC column or directly on an optically clear portion of fused-silica capillary columns for analyte detection.
  • (17) X-ray diffraction data from samples of 20, 60 and 100 mug quartz on poly-vinyl chloride membrane filters have been collected using a rotating anode x-ray source.
  • (18) Mentally,” an Uber driver who used to do contract limo work told a reporter from business magazine Quartz last week, “these rating systems affect us a lot… If I am driving somebody who doesn’t live in New York, and they complain that I took the wrong route, how would they know the route that I should have taken?” He went on to note that in 20 years of working with corporate employees, he hadn’t a single customer complaining.
  • (19) There are closed relations between progressive systemic sclerosis (PSS) and exposure to quartz dust in the GDR.
  • (20) A 630 nanometer wavelength of light was delivered through a quartz-optical fiber with either a regular flat end for focal illumination or a bulb-type end which produced an isotropic light pattern.