Although it is not known where these specimens were collected, Victoria and other regions of Australia were surveyed for sites of potential mineral wealth throughout the 19th Century. The identification of sites containing valuable commodities such as gold, iron ore and gemstones in a locality had the potential to shape the development and history of communities and industries in the area. The discovery of gold in Victoria, for instance, had a significant influence on the development of the area now known as 'the goldfields', including Beechworth; the city of Melbourne and Victoria as a whole. Agate occurs when amygdales (gas pockets) form in the upper levels of basaltic lava flows. If these pockets or bubbles are iniltrated by water bearing silica in solution, the fluid dries and hardens in layers, forming round or egg shaped nodules or geodes within the rocky matrix. Agate is formed of a silica mineral chalcedony similar to quartz. The term carnelian primarily refers to the reddish shading of the stone; whether the stone is termed an agate or chalcedony type is often influenced by the degree of colour banding the specimen shows. The specimens are significant as examples of surveying activity undertaken to assess and direct the development of the mineral resource industries in Victoria and Australia, as well as the movement to expand human knowledge of earth sciences such as mineralogy and geology in the nineteenth century.Three small geological specimens that appear visually consistent with images of rough or unpolished Carnelian Agate or Chalcedony. geological specimen, geology, geology collection, burke museum, beechworth, indigo shire, north-east victoria, gemstones, agate, carnelian

7 Volume Set of Books with alphabetically listed words, their meanings and extensive additional information with illustrations both coloured and black and white interspersed throughout - cloth bound. Vol 1: A - Carnelian p1-632 plus Introduction at front p i-iviv (Roman numerals) Vol 2: Carnival - Druse p633-1304 Vol 3: Dry - Hark p1305-1976 Vol 4: Harken - Male p1977-2648 Vol 5: Male - Polder p2649-3320 Vol 6: Pole - Snag p3321-3992 Vol 7: Snail - Zymolic p3993-4664 incuding list of prefixesNo title on outside of volumes and pages missing from the front of all volumes so no indication of publishing details.children's encyclopedia's, dictionaries

Tourmaline specimens are members of a crystalline silicate mineral group based on boron but influenced by elements including aluminium, iron, magnesium, sodium, lithium, or potassium. Specimens present a wide variety of colours and forms according to the specific mix of these elements. Tourmalines are semi-precious gemstones with many applications, including commercial jewellery production. The word 'tourmaline' derives from the Sinhalese term for the carnelian or red-shaded specimens, "tōramalli". This specimen has been classified by geologists as 'Black Schoalou/Tourmaline in quartz'. Schoalou may equate to a common black-hued type of Tourmaline associated since around 1400 with mines in Saxony, Germany near a village called Schorl (today's Zchorlau). If this specimen is part of the 'Schorl' species of tourmaline it is a member of the most common group of Tourmalines, a divalent sodium ion influenced group accounting for 95% of specimens. On assessment, it was noted that the crossed lines (XIs) of this tourmaline have been fractured and rehealed by the quartz matrix in which the tourmaline rests. This item is significant as an example of its type of gemstone and the geological processes leading to its formation. A solid medium-sized piece of Black Schoalou/Tourmaline in a cream and peach coloured quartz matrix. Existing label: Black Schoalou / Tourmaline in / quartz. / Tourmalines XIs have / been fractured and / rehealed with / quartz / C. Willman / 15/4/21 /geological specimen, geology, geology collection, burke museum, beechworth, indigo shire, north-east victoria, tourmaline, quartz, boron, crystals, minerals, gemstones, semi-precious, black schoalou, zchorlau, schorl