WebSep 16, 2013 · softer than glass, reacts to HCl: limestone: warm shallow ocean: calcite: visible fossils, softer than glass, reacts to HCl: fossiliferous limestone: warm shallow ocean: dolomite: white to pink, softer than glass, reacts to HCl only when powdered: dolostone: saline lagoon: calcite: gray or brown, porous, reacts to HCl: travertine: evaporated ... WebAug 20, 2024 · The exact concentration doesn't matter that much. The stock solution that I used to use was 1 M aqueous HCl (~3%). If your compound is acid-sensitive then you might want to try using even more dilute HCl (e.g. 0.01–0.1 M), or skip this step altogether and just purify it using a different method.
GEOL 1103 Lab Exam 1 Summer Lab Quizzes 1-5 Flashcards
WebHalite Perfect cleavage in one direction, poor in two others; H=2; white; transparent; D=2.3 Gypsum Perfect cleavage in three directions at approximately 75°; effervesces in HCl; … Web5. Sample I has the following characteristic: a. effervesces in dilute acid b. contains fossil shells and effervesces in dilute acid c. contains sand-sized grains and scratches glass d. does not contain grains and scratches glass e. does not contain grains and can be scratched with a fingernail f. consists of grains too small to see, giving it a fz元帅
04Lab Mineral Identification - University of Washington
WebHalite definition, a soft white or colorless mineral, sodium chloride, NaCl, occurring in cubic crystals with perfect cleavage; rock salt. See more. WebSee Answer. Question: 7. EFFERVESCENCE (IN DILUTE ACID) Some minerals, particularly carbonates, will effervesce (fizz) when a drop of cold dilute hydrochloric acid (HCI) is dropped on the surface. A) Which of the following minerals fizzed with the application of HCI? (circle) Calcite Potassium Feldspar Quartz B) Minerals are the … WebDolomite effervesces with dilute hydrochloric acid, but slowly rather than vigorously as calcite does; in general, it appears to smolder slowly, and in some cases it does so only … fz使用