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Few people knew exactly where it originated, and fewer still were permitted access. The location is private, house and past owners were understandably protective of the treasure. Around four decades ago a little daughter, local boy named Martin Kramer (That's Martin inside photo, characteristically swinging a pick. Also, three collectors from your Monterey / Carmel area.) was hill climbing near his Morgan Hill home, South of San Jose, California and noticed some pretty, red rocks. Back then, the jasper may be collected as float material. When that have all been removed rockhounds attacked outcrops with gads, prybars, and sledges looking for jasper in the host rock. Finally, exploratory holes were dug until two reliable veins were found just feet derived from one of another. For years this one site has supplied gem rough for lapidaries through the nation and beyond. If you notice a recent abundance of poppy jasper on the market (I have seen bowling ball-sized boulders at a few shows) it is because your website was opened to fee-digging the past couple of years. Knowing they'd soon sell their house, pet owners took advantage of the additional income stream. The fine particles are mostly made from gases. There are four major origins for that gases which are responsible for these particles: rock (vaporized during combustion or casting), carbon from combustion, organic carbon, sulfates and nitrates. Take sulphur dioxide. It is created during engine combustion, but when it climbs into the atmosphere and mixes with rain it will become sulphuric acid. We all probably know very well what that will do- since it is highly corrosive and dangerous in concentration.