When in solution, the calcium ion to the human taste varies remarkably, being reported as mildly salty, sour, " mineral like " or even " soothing.

When the mineral nutrients in the soil dissolve in water, plant roots are able to absorb them.

When the required mineral nutrients are introduced into a plant's water supply artificially, soil is no longer required for the plant to thrive.

When conditions are right for precipitation, calcite forms mineral coatings that cement the existing rock grains together, or it can fill fractures.

When a mineral is broken in a direction that does not correspond to a plane of cleavage, it is termed to have been fractured.

When enough rock is melted, the small globules of melt ( generally occurring in between mineral grains ) link up and soften the rock.

When magma cools it begins to form solid mineral phases.

When the organic component of a soil is substantial, the soil is called organic soil rather than mineral soil.

When the gemstones are in a rough state, the gemologist studies the external structure ; the host rock and mineral association ; and natural and polished colour.

When the mineral is observed at some angle, light following some combination of paths and polarizations will be present, each of which will have had light of different colors absorbed.

When he returned, he tried to launch a small mineral railway in Cornwall.

When the five founders of the company thought they had found mineral called corundum, which would be used for making sandpaper, they began the process of setting up a mining company.

When the density of the solution is properly calibrated, the hematite will sink and the silicate mineral fragments will float and can be removed.

When Gadolin analyzed this mineral, he missed an opportunity to discover a second element: what he thought was aluminium ( alumina ) was in fact an element that would not be officially discovered until 1798: beryllium ( beryllia ).

When growing on mineral surfaces, some lichens slowly decompose their substrate by chemically degrading and physically disrupting the minerals, contributing to the process of weathering by which rocks are gradually turned into soil.

When passenger services started, the usual practice was for locomotive-hauled up trains to consist of loaded general goods and mineral wagons, followed by passenger carriages, followed by empty slate wagons with brakesmen.

When he was rebuffed there he travelled to Belgium, where in 1889 a financier named Somsy offered to provide him with arms and money in exchange for the kingdom's mineral rights.

When Mr. Yanase began the importing company with Mitsui, he also imported petroleum mineral oil products.

When in 1886 a second major mineral find was made at an outcrop on a large ridge some thirty miles south of the Boer capital at Pretoria, it reignited British imperial interests.

When performing, he consumed around of material daily, preceding it with mineral oil and drinking considerable quantities of water during the meal.

When taken without supervision there is a risk of overdosing resulting in mineral toxicity in the body.

When he died, he also bequeathed his considerable library, papers, mineral collection, scientific apparatus and art collection to the school.

When the pH at the surface of the tooth drops below 5. 5, demineralization proceeds faster than remineralization ( meaning that there is a net loss of mineral structure on the tooth's surface ).

When the Autobots began to suffer from Cybertonium deficiency, Spike Witwicky and his girlfriend Carly attempted to persuade the Dinobots-who continued to function perfectly, as they had been built on Earth without Cybertonium-to steal some of the mineral from a Decepticon shipment coming in from Cybertron.

When they were closer and he saw that one was a woman, he was more puzzled than ever.

When the meal was ready, he told Jones to wash up, and going into the front room, woke the girl.

When they reached their neighbor's house, Pamela said a few polite words to Grace and kissed Melissa lightly on the forehead, the impulse prompted by a stray thought -- of the type to which she was frequently subject these days -- that they might never see one another again.

When he regained consciousness he was in Lord's house, in the office of Doctor Lord, the deputy's deceased father.

When it was followed by a second, whining even closer, Cobb swerved sharply aside into a depression.

When the sea was visible ahead of them, the relief was as great as if the sun had come out.

When she appeared at the store to help out for a few hours even my looking at her was surreptitious lest my Uncle notice it.

When our eyes met the air was filled with an unuttered message of `` Me, too ''.

`` When I was in college '', I grinned, `` I remember a poem I had to read in my lit class.

When they got to Shillong, in Assam, he was happy.

`` When I came up, damnit, I thought I was going down.

When he awoke in the mornings, she was in his mind and he could hardly wait to get to school to be near her in the flesh.

When he came back to the schoolhouse, his mind was made up.

When he finally left the sinister mansion on Perdido Street, he was carried out in a coroner's basket.

When he was eight he began violin lessons.

When the possibility that he had not given reconsideration to so weighty a decision seemed to disconcert his questioners, Mr. Eisenhower was known to make his characteristic statement to the press that he was not going to talk about the matter any more.

When he was stripped, deloused and numbered by his guards, his much-thumbed sketchbook was seized and thrown on a pile of prisoners' goods to be confiscated.

When her right hand was incapacitated by the rheumatism, Sadie learned to write with her left hand.

When Harold Arlen returned to California in the winter of 1944, it was to take up again a collaboration with Johnny Mercer, begun some years before.

When he was fifteen John H. Mercer turned out his first song, a jazzy little thing he called `` Sister Susie, Strut Your Stuff ''.

When he heard that Paul Whiteman was looking for singers to replace the Rhythm Boys, Mercer applied and got the job, `` not for my voice, I'm sure, but because I could write songs and material generally ''.