Array ( [status] => 200 [status_message] => Picture item [data] => Array ( [picture_id] => 2234 [moddate] => 2018-10-03 15:15:39 [title] => Measuring clay test bars done by Luke Lindoe 40 years ago [alttag] => [titletag] => [metadescrip] => [metakeys] => [S3URL] => https://reference.s3.us-west-2.amazonaws.com/images/pictures/9vopaquffx.jpg [S3Date] => 2018-10-02 16:41:02 [url] => [picture_date] => 2018-10-02 16:40:40 [path] => images/pictures/ [filename] => 9vopaquffx.jpg [deleted] => 0 [notfound] => 0 [descrip] => Luke Lindoe prospected Montana and Idaho for clays during the 1970s. He found an amazing variety of fireclays, earthenwares and stonewares. Every color, texture, plasticity. For each he made test bars to fire at different temperatures. Our M2 and Troy clays originated from this work. We just found these bars, but do not have Luke's shrinkage and porosity data, so are measuring them now. He code-numbered each and stamped them with four-inch marks. So we can derive the total fired shrinkages and measure the porosities. We can tell a lot about the plasticity of each by the nature of the cut lines. The texture also is obvious. Now we just need to start searching Luke's map archives to find out where all of these are. [disqualify] => 0 [timelinephoto] => 0 [timeline_name] => [plainsman] => p [insight_help_id] => 0 [fullpath] => /var/www/digitalfire.com/4sight/images/pictures/9vopaquffx.jpg [fullurl] => https://digitalfire.com/4sight/images/pictures/9vopaquffx.jpg [pictures] => Array ( [3195] => Array ( [z] => eiq9ThHjL8 [alttag] => [titletag] => Luke Lindoe fired glaze tests [title] => John Porter’s fired glaze samples are being catalogued [notes] => John Porter was a prolific glaze tester and developer, both in reduction and oxidation firing. We have finished taking and cataloging pictures of a treasure trove of glaze samples of his testing from the 1970s to the 1990s. Among them are also samples done by Luke Lindoe, he focussed mostly on reduction. Every one of the many hundreds of specimens was code numbered and we already know the recipes of some. We are confident that other cataloguing work will uncover more of his notes and provide clues and information to derive the recipes on many of the samples. The ultimate goal is to make all the pictures and documentation available on line for students and potters. [filename] => jfghbzryyx.jpeg [path] => images/pictures/ [fullpath] => /var/www/digitalfire.com/4sight/images/pictures/ [fullurl] => https://digitalfire.com/4sight/images/pictures/ [picture_date] => 2023-03-21 14:29:44 [S3URL] => https://reference.s3.us-west-2.amazonaws.com/images/pictures/jfghbzryyx.jpeg [S3Date] => 2023-03-21 14:40:02 [timelinephoto] => 0 [ord] => 0 [direction] => in [url] => ) ) ) ) Measuring clay test bars done by Luke Lindoe 40 years ago
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Measuring clay test bars done by Luke Lindoe 40 years ago

Luke Lindoe prospected Montana and Idaho for clays during the 1970s. He found an amazing variety of fireclays, earthenwares and stonewares. Every color, texture, plasticity. For each he made test bars to fire at different temperatures. Our M2 and Troy clays originated from this work. We just found these bars, but do not have Luke's shrinkage and porosity data, so are measuring them now. He code-numbered each and stamped them with four-inch marks. So we can derive the total fired shrinkages and measure the porosities. We can tell a lot about the plasticity of each by the nature of the cut lines. The texture also is obvious. Now we just need to start searching Luke's map archives to find out where all of these are.

Measuring clay test bars done by Luke Lindoe 40 years ago

Related Pictures

John Porter’s fired glaze samples are being catalogued

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John Porter was a prolific glaze tester and developer, both in reduction and oxidation firing. We have finished taking and cataloging pictures of a treasure trove of glaze samples of his testing from the 1970s to the 1990s. Among them are also samples done by Luke Lindoe, he focussed mostly on reduction. Every one of the many hundreds of specimens was code numbered and we already know the recipes of some. We are confident that other cataloguing work will uncover more of his notes and provide clues and information to derive the recipes on many of the samples. The ultimate goal is to make all the pictures and documentation available on line for students and potters.

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