on</h3>

<p>Chemical composition of Romano-British pottery.
</p>


<h3>Usage</h3>

<pre><code class='language-R'>data("pottery")</code></pre>


<h3>Format</h3>

<p>A data frame with 45 observations on the following 9 chemicals.
</p>

<dl>
<dt>Al2O3</dt><dd><p>aluminium trioxide.</p>
</dd>
<dt>Fe2O3</dt><dd><p>iron trioxide.</p>
</dd>
<dt>MgO</dt><dd><p>magnesium oxide.</p>
</dd>
<dt>CaO</dt><dd><p>calcium oxide.</p>
</dd>
<dt>Na2O</dt><dd><p>natrium oxide.</p>
</dd>
<dt>K2O</dt><dd><p>calium oxide.</p>
</dd