Noun:

பழுப்புக்கல்,

ironstone தமிழ் அர்த்தத்தின் உதாரணம்:

None

ironstone's Usage Examples:

The larger part of Lorraine belongs to France, but the German part nossesses great mineral wealth in its rich layers of ironstone (siderite) and in the coal-fields of the Saar.

substratumn>principal substrata are limestone and freestone of excellent quality; and along the banks of the river, ironstone is found in abundance.

West of the volcanic region, nearer to Lake Victoria and the Eastern province, ironstone, granite, gneiss and schistose formations predominate, with phonolite in places.

The rocks in the Arakan range and its spurs are metamorphic, and comprise clay, slates, ironstone and indurated sandstone; towards the S.

thick, and formed of a core of rough rubble cemented together with mortar (containing much coarse gravel) of extraordinary hardness and tenacity, and a facing for the most part of stone - Kentish rag, freestone or ironstone - but occasionally of flints; about 2 ft.

The element is not found in the free state in nature, nor to any large extent in combination, occurring chiefly as chrome-ironstone, Cr 2 O 3 FeO, and occasionally being found as crocoisite, PbCrO 4, chrome-ochre, Cr 2 0 3, and chromegarnet, CaO Cr 2 O 3.

The mineral wealth of Saxe-Coburg-Gotha is insignificant, small quantities of coal, lignite, ironstone and millstone being annually raised.

Cannel coals are generally variable in quality, being liable to change into shales or black-band ironstones within very short horizontal limits.

Geologically, Banka resembles the Malay Peninsula, its formations being mainly granite, Silurian and Devonian slate, frequently covered with sandstone, laterite (red ironstone clay) of small fertility, and alluvium.

The islands are of ironstone formation overlying quartzite and crystalline schists.

As the impurities increase in amount the clay rocks pass gradually into argillaceous sands and sandstones, argillaceous limestones and dolomites, shaly coals and clay ironstones.